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Full vulnerability report · 2026
CVE-2026-48356High confidence

Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability

Adobe · Commerce and Magento

Official source article: Adobe APSB26-73 ↗. Check the applicable product and release in the original source.

9.3CriticalCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2026-11-10 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • CISA confirms exploitation in the wild.
  • EPSS is 59.08% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Adobe Commerce and Magento 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: Within 3 daysRemediation target: Within 90 days

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-2026-44420

CISA KEV mirrored by ENISA

Adobe Commerce is affected by an Unrestricted Upload of File with Dangerous Type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 27 Oct 2026. Evidence sources: cisa_kev.
ENISA score
9.3 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2026-11-10 as the remediation due date.

Patch available
01

What, why and how

Adobe Commerce and Magento contain an unrestricted upload of file with dangerous type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session.

What

Adobe Commerce and Magento contain an unrestricted upload of file with dangerous type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session.

Why

The upload path does not sufficiently restrict the type, name, location or later execution of attacker-supplied files.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

Adobe Commerce and Magento contain an unrestricted upload of file with dangerous type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session.

Why

The upload path does not sufficiently restrict the type, name, location or later execution of attacker-supplied files.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2026-10-27.

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
a network path → Unrestricted Upload of File with Dangerous Type → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
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-434 ↗

CWE-434: Unrestricted Upload of File with Dangerous Type. The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

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

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing 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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionPrivilege escalationCWE-434CISA KEV
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-44420Known-exploited evidence recorded

Adobe Commerce is affected by an Unrestricted Upload of File with Dangerous Type vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2367Adobe Magento: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Adobe Magento ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen und vertrauliche Informationen offenzulegen.

Official advisory ↗
Canadian Centre for Cyber Security · English · AV26-697Adobe security advisory (AV26-697) – Update 1

On July 14, 2026, Adobe published security advisories to address critical vulnerabilities in the following products: Update 1 On October 27, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-48356 to their Known Exploited Vulnerabilities (KEV) Database.

Official advisory ↗
CSIRT Italia · Italian · adobe-aggiornamenti-di-sicurezza-18Adobe: aggiornamenti di sicurezza

pre una nuova finestra Telegram: apre una nuova finestra RSS: apre una nuova finestra --> Home CSIRT Italia Alert e Bollettini Adobe: aggiornamenti di sicurezza Adobe: aggiornamenti di sicurezza Alert AL02/260715/CSIRT-ITA Condividi Facebook Twitter LinkedIn Whatsapp Sintesi Adobe ha rilasciato aggiornamenti di sicurezza per risolvere molteplici vulnerabilità, di cui 13 con gravità “critica” e 50 con gravità “alta”, in molteplici prodotti. Tipologia Arbitrary Code Execution Privilege Escalation Security Feature Bypass Arbitrary File Read Denial of Service Descrizione e potenziali impatti In dettaglio, la vulnerabilità identificata tramite la CVE-2026-48356 - di tipo "Unrestricted Upload of File with Dangerous Type" e con score CVSS v3.1 pari a 9.3 - è dovuta alla mancanza di controlli adeguati sul tipo dei file caricati in Adobe Commerce e Magento Open Source. Un attaccante remoto non autenticato, inducendo un utente a visitare un URL opportunamente predisposto o a interagire con una pagina web compromessa, potrebbe caricare ed eseguire codice arbitrario nel contesto dell'utente corrente, ottenendo potenzialmente privilegi elevati o il controllo dell'account o della sessione della vittima. Prodotti e/o versioni affette Adobe Media Encoder 26.x, versioni precedenti alla 26.3 Media Encoder 25.x,

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-023891アドビのAdobe Commerce等の複数製品における危険なタイプのファイルの無制限アップロードに関する脆弱性

Adobe Commerceは、危険なタイプのファイルを無制限にアップロードできる脆弱性の影響を受けており、これにより現在のユーザーのコンテキストで任意のコードを実行される可能性があります。攻撃者はこの脆弱性を悪用して、悪意のあるスクリプトをウェブページに注入し、被害者のアカウントやセッションの権限を昇格させ、制御を奪う可能性があります。この問題を悪用するには、被害者が悪意のあるURLを訪問するか、改ざんされたウェブページと対話するというユーザーの操作が必要です。範囲が変更されました。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-7015美 CISA 발표 주요 Exploit 정보공유(Update. 2026-10-27)

Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability

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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
Official vendor articles2 stored documents

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 update available for Adobe Commerce | APSB26-73 →Original publisher ↗Searchable text snapshot · Captured 23 Oct 2026#202020 Adobe Security Bulletin Last updated on Aug 11, 2026 Security update available for Adobe Commerce | APSB26-73 Bulletin ID Date published Priority APSB26-73 July 14, 2026 2 style grid width 12 Summary Adobe has released a security update for Adobe Commerce and Magento Open Source. This update resolves critic
  • Security update available for Adobe Commerce | APSB26-73 →Original publisher ↗Searchable text snapshot · Captured 22 Oct 2026#202020 Adobe Security Bulletin Last updated on Aug 11, 2026 Security update available for Adobe Commerce | APSB26-73 Bulletin ID Date published Priority APSB26-73 July 14, 2026 2 style grid width 12 Summary Adobe has released a security update for Adobe Commerce and Magento Open Source. This update resolves critic
04

Evidence and provenance

Published 14 Jul 2026 · Last source change 28 Oct 2026, 03:55 UTC · CWE-434 · Unrestricted Upload of File with Dangerous Type

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-2026-44420
Product sourceCISA KEV
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA known-exploited stateENISA EUVD now records this CVE in its known-exploited dataset.
    Before
    not listed in ENISA EUVD known-exploited dataset
    After
    listed in ENISA EUVD known-exploited dataset (EUVD-2026-44420)
    ENISA EUVD ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    ≤ 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15, 2.4.5-p17, 2.4.4-p18; ≤ 1.5.3, 1.5.2-p5, 1.4.2-p10, 1.3.4-p17, 1.3.3-p18; ≤ 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15; ≤ 1.20.0 · Fixed: 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-jul, 2.4.5-2026-jul, 2.4.4-2026-jul; 1.5.3-2026-jul, 1.5.2-2026-jul, 1.4.2-2026-jul, 1.3.4-2026-jul, 1.3.3-2026-jul; 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-jul; 1.21.0
    After
    Adobe Commerce: ≤ 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15, 2.4.5-p17, 2.4.4-p18; Adobe Commerce B2B: ≤ 1.5.3, 1.5.2-p5, 1.4.2-p10, 1.3.4-p17, 1.3.3-p18; Magento Open Source: ≤ 2.4.9, 2.4.8-p5, 2.4.7-p10, 2.4.6-p15; Adobe Commerce Events: ≤ 1.20.0 · Fixed: Adobe Commerce: 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-jul, 2.4.5-2026-jul, 2.4.4-2026-jul; Adobe Commerce B2B: 1.5.3-2026-jul, 1.5.2-2026-jul, 1.4.2-2026-jul, 1.3.4-2026-jul, 1.3.3-2026-jul; Magento Open Source: 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-jul; Adobe Commerce Events: 1.21.0
    CISA KEV ↗
  3. CISA KEV stateCISA KEV now confirms exploitation in the wild.
    Before
    not listed in CISA KEV
    After
    listed in CISA KEV since 2026-10-27
    CISA KEV ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-44420↗CISA KEV record↗CVE authority or vendor reference · Adobe APSB26-73↗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-2026-48356 · cve.blacktree.nl