Evidence used
- No CISA KEV confirmation is currently recorded.
- A structured source references public exploit or proof-of-concept material.
- EPSS is 1.28% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2023
CVE-2023-44393High confidence
Piwigo Reflected XSS vulnerability
Piwigo · Piwigo
Official source article: GitHub GHSA-QG85-957M-7VGG ↗. Check the applicable product and release in the original source.
9.3CriticalCVSS 3.1
Within 72 hours
Patch availableCritical technical impact and a public exploit reference; no CISA KEV confirmation is currently recorded.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityCritical→Operational priority:Critical, unchanged from published severity.unchanged
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
- Confirm that the asset runs Piwigo Piwigo and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Critical technical impact and a public exploit reference; no CISA KEV confirmation is currently recorded.
Patch available01
What, why and how
Piwigo is an open source photo gallery application. Prior to version 14.0.0beta4, a reflected cross-site scripting (XSS) vulnerability is in the` /admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page. This vulnerability can be exploited by an attacker to inject malicious HTML and JS code into the HTML page, which could then be executed by admin users when they visit the URL with the payload. The vulnerability is caused by the insecure injection of the `plugin_id` value from the URL into the HTML page. An attacker can exploit this vulnerability by crafting a malicious URL that contains a specially crafted `plugin_id` value. When a victim who is logged in as an administrator visits this URL, the malicious code will be injected into the HTML page and executed. This vulnerability can be exploited by any attacker who has access to a malicious URL. However, only users who are logged in as administrators are affected. This is because the vulnerability is only present on the `/admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page, which is only accessible to administrators. Version 14.0.0.beta4 contains a patch for this issue.
What
Piwigo is an open source photo gallery application. Prior to version 14.0.0beta4, a reflected cross-site scripting (XSS) vulnerability is in the` /admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page. This vulnerability can be exploited by an attacker to inject malicious HTML and JS code into the HTML page, which could then be executed by admin users when they visit the URL with the payload. The vulnerability is caused by the insecure injection of the `plugin_id` value from the URL into the HTML page. An attacker can exploit this vulnerability by crafting a malicious URL that contains a specially crafted `plugin_id` value. When a victim who is logged in as an administrator visits this URL, the malicious code will be injected into the HTML page and executed. This vulnerability can be exploited by any attacker who has access to a malicious URL. However, only users who are logged in as administrators are affected. This is because the vulnerability is only present on the `/admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page, which is only accessible to administrators. Version 14.0.0.beta4 contains a patch for this issue.
Why
Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
Piwigo is an open source photo gallery application. Prior to version 14.0.0beta4, a reflected cross-site scripting (XSS) vulnerability is in the` /admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page. This vulnerability can be exploited by an attacker to inject malicious HTML and JS code into the HTML page, which could then be executed by admin users when they visit the URL with the payload. The vulnerability is caused by the insecure injection of the `plugin_id` value from the URL into the HTML page. An attacker can exploit this vulnerability by crafting a malicious URL that contains a specially crafted `plugin_id` value. When a victim who is logged in as an administrator visits this URL, the malicious code will be injected into the HTML page and executed. This vulnerability can be exploited by any attacker who has access to a malicious URL. However, only users who are logged in as administrators are affected. This is because the vulnerability is only present on the `/admin.php?page=plugins&tab=new&installstatus=ok&plugin_id=[here]` page, which is only accessible to administrators. Version 14.0.0.beta4 contains a patch for this issue.
Why
Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. 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 No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 Reference recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
- Likely attack path
- a network path → Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') → cause the confidentiality, integrity or availability impact described by the vendor
- 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-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:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NCommon 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
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
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
- Piwigo: < 14.0.0beta4
- 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.
04
Evidence and provenance
Published 9 Oct 2023 · Last source change 19 Sept 2024, 13:51 UTC · CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2023-48739
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
View recent updates ↗What changed after publication
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.
CVE published
Fixed release or patch reference recorded
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.