CVE-2026-45014: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in apostrophecms apostrophe
ApostropheCMS versions up to and including 4.29.0 contain a stored cross-site scripting (XSS) vulnerability. This occurs due to improper neutralization of user input in the display name shown in draft version tooltips. No patched versions are currently available for this vulnerability. The CVSS 4.0 base score is 5.3, indicating a medium severity risk.
AI Analysis
Technical Summary
CVE-2026-45014 is a stored cross-site scripting vulnerability in ApostropheCMS, an open-source Node.js content management system. Versions <=4.29.0 are affected by improper sanitization of the user display name in draft version tooltips, allowing an attacker to inject malicious scripts that execute in the context of other users viewing the tooltip. There is no known patch or official remediation available at the time of publication.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of users viewing the affected draft version tooltip, potentially leading to session hijacking, defacement, or other client-side attacks. The vulnerability requires user interaction (UI:P) and has no privileges or authentication required (PR:N). The overall impact is rated medium based on the CVSS 4.0 score of 5.3.
Mitigation Recommendations
No official fix or patch is currently available for this vulnerability. Users should monitor the vendor's advisories for updates and consider applying manual input sanitization or disabling the affected feature as a temporary mitigation until a patch is released.
CVE-2026-45014: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in apostrophecms apostrophe
Description
ApostropheCMS versions up to and including 4.29.0 contain a stored cross-site scripting (XSS) vulnerability. This occurs due to improper neutralization of user input in the display name shown in draft version tooltips. No patched versions are currently available for this vulnerability. The CVSS 4.0 base score is 5.3, indicating a medium severity risk.
CVSS v4.0
Score 5.3medium
Affected software
pkg:npm/apostrophecms/apostropheRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-45014 is a stored cross-site scripting vulnerability in ApostropheCMS, an open-source Node.js content management system. Versions <=4.29.0 are affected by improper sanitization of the user display name in draft version tooltips, allowing an attacker to inject malicious scripts that execute in the context of other users viewing the tooltip. There is no known patch or official remediation available at the time of publication.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary scripts in the context of users viewing the affected draft version tooltip, potentially leading to session hijacking, defacement, or other client-side attacks. The vulnerability requires user interaction (UI:P) and has no privileges or authentication required (PR:N). The overall impact is rated medium based on the CVSS 4.0 score of 5.3.
Mitigation Recommendations
No official fix or patch is currently available for this vulnerability. Users should monitor the vendor's advisories for updates and consider applying manual input sanitization or disabling the affected feature as a temporary mitigation until a patch is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-08T16:58:28.895Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c7589e617e2d834c30b6f
Added to database: 6/12/2026, 9:09:29 PM
Last enriched: 6/12/2026, 9:25:08 PM
Last updated: 6/13/2026, 12:59:59 AM
Views: 4
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