BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2026
CVE-2026-21269High confidence

ColdFusion | Cross-site Scripting (Stored XSS) (CWE-79)

Adobe · ColdFusion 2025

Official source article: Adobe APSB26-119 ↗. Check the applicable product and release in the original source.

4.6MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Low, lowered one band.downgradedsince 8 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.50% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Adobe ColdFusion 2025 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: No default targetRemediation target: Normal maintenance

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-56544

No EUVD known-exploited evidence

ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
4.6 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

What

ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-79 ↗

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-79
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-56544Official EUVD mapping

ColdFusion is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3250Adobe ColdFusion: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Adobe ColdFusion ausnutzen, um beliebigen Programmcode auszuführen, Berechtigungen zu erweitern, Daten offenzulegen oder zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1140Multiples vulnérabilités dans les produits Adobe

uant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance. Solutions Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Adobe APSB26-119 du 08 septembre 2026 https://helpx.adobe.com/security/products/coldfusion/apsb26-119.html Bulletin de sécurité Adobe APSB26-138 du 08 septembre 2026 https://helpx.adobe.com/security/products/magento/apsb26-138.html Bulletin de sécurité Adobe APSB26-141 du 08 septembre 2026 https://helpx.adobe.com/security/products/acrobat/apsb26-141.html Référence CVE CVE-2026-21269 https://www.cve.org/CVERecord?id=CVE-2026-21269 Référence CVE CVE-2026-48273 https://www.cve.org/CVERecord?id=CVE-2026-48273 Référence CVE CVE-2026-75746 https://www.cve.org/CVERecord?id=CVE-2026-75746 Référence CVE CVE-2026-75993 https://www.cve.org/CVERecord?id=CVE-2026-75993 Référence CVE CVE-2026-75998 https://www.cve.org/CVERecord?id=CVE-2026-75998 Référence CVE CVE-2026-75999 https://www.cve.org/CVERecord?id=CVE-2026-75999 Référence CVE CVE-2026-76000 https://www.cve.org/CVERecord?id=CVE-2026-76000 Référence CVE CVE-2026-76002 https://www.cve.org/CVERecord?id=CVE-2026-76002 Référence CVE CVE-2026-76190 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-028459アドビのAdobe ColdFusionにおけるクロスサイトスクリプティングの脆弱性

ストアド型クロスサイトスクリプティング（XSS）の脆弱性の影響を受けており、権限の低い攻撃者が脆弱なフォームフィールドに悪意のあるスクリプトを注入するために悪用する可能性があります。被害者が脆弱なフィールドを含むページを閲覧すると、悪意のあるJavaScriptがブラウザで実行されることがあります。スコープが変更されました。

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0362Kwetsbaarheden verholpen in Adobe ColdFusion

A stored Cross-Site Scripting (XSS) vulnerability in ColdFusion allows low-privileged attackers to inject malicious scripts into form fields that execute in victims' browsers upon visiting the affected page, with the scope of the issue changed.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
Official vendor articles1 stored document

Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.

  • Security updates available for Adobe ColdFusion | APSB26-119 →Original publisher ↗Searchable text snapshot · Captured 27 Sep 2026#202020 Adobe Security Bulletin Last updated on Sep 8, 2026 Security updates available for Adobe ColdFusion | APSB26-119 Bulletin ID Date published Priority APSB26-119 September 8, 2026 1 style grid width 12 Summary Adobe has released a security update for ColdFusion versions 2025 and 2023. This update resolves  cr
04

Evidence and provenance

Published 11 Aug 2026 · Last source change 8 Sept 2026, 19:37 UTC · CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-56544
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added remediation: helpx.adobe.com/apsb26-119.html; removed remediation: helpx.adobe.com/apsb26-90.html; removed vendor advisory: helpx.adobe.com/apsb26-90.html.
    Before
    remediation: helpx.adobe.com/apsb26-90.html · vendor advisory: helpx.adobe.com/apsb26-90.html
    After
    remediation: helpx.adobe.com/apsb26-119.html
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    ColdFusion 2025: ≤ 2025.0.11; ColdFusion 2023: ≤ 2023.0.22 · Fixed: ColdFusion 2025: 2025.0.12; ColdFusion 2023: 2023.0.23
    After
    ColdFusion 2025: ≤ 12; ColdFusion 2023: ≤ 23 · Fixed: ColdFusion 2025: 13; ColdFusion 2023: 24
    CNA ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: helpx.adobe.com/apsb26-119.html; removed vendor advisory: helpx.adobe.com/apsb26-90.html.
    Before
    remediation: helpx.adobe.com/apsb26-119.html · vendor advisory: helpx.adobe.com/apsb26-119.html · vendor advisory: helpx.adobe.com/apsb26-90.html
    After
    remediation: helpx.adobe.com/apsb26-119.html
    CNA ↗
  4. Vendor guidanceAuthoritative vendor guidance changed: added remediation: helpx.adobe.com/apsb26-119.html; added vendor advisory: helpx.adobe.com/apsb26-119.html; removed remediation: helpx.adobe.com/apsb26-90.html.
    Before
    remediation: helpx.adobe.com/apsb26-90.html · vendor advisory: helpx.adobe.com/apsb26-90.html
    After
    remediation: helpx.adobe.com/apsb26-119.html · vendor advisory: helpx.adobe.com/apsb26-119.html · vendor advisory: helpx.adobe.com/apsb26-90.html
    helpx.adobe.com ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    ≤ 2025.0.11; ≤ 2023.0.22 · Fixed: 2025.0.12; 2023.0.23
    After
    ≤ 12; ≤ 23 · Fixed: 13; 24
    CNA ↗
  6. Vendor guidanceAuthoritative vendor guidance changed: added remediation: helpx.adobe.com/apsb26-90.html; added vendor advisory: helpx.adobe.com/apsb26-90.html; removed remediation: helpx.adobe.com/apsb26-119.html.
    Before
    remediation: helpx.adobe.com/apsb26-119.html
    After
    remediation: helpx.adobe.com/apsb26-90.html · vendor advisory: helpx.adobe.com/apsb26-90.html
    helpx.adobe.com ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    ≤ 12; ≤ 23 · Fixed: 13; 24
    After
    ColdFusion 2025: ≤ 2025.0.11; ColdFusion 2023: ≤ 2023.0.22 · Fixed: ColdFusion 2025: 2025.0.12; ColdFusion 2023: 2023.0.23
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-56544↗CVE authority or vendor reference · Adobe APSB26-119↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-21269 · cve.blacktree.nl