CVE-2026-105124: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in vincent-peugnet wcms
Description
W (vincent-peugnet/wcms) through 3.18.0 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts via the login user field and visitor comment website field. Attackers can submit failed logins rendered unescaped in the adminlog.php log viewer, or comment URLs echoed into href attributes in editrightbar.php, executing script with administrator or editor privileges.
CVSS v4.0
Score 5.3medium
Affected software
vincent-peugnet
wcms
pkg:github/vincent-peugnet/wcmsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in vincent-peugnet wcms (up to version 3.18.0) involves improper neutralization of input during web page generation, specifically stored XSS. Attackers can inject scripts through the login user field and visitor comment website field. Failed login attempts are logged unescaped in adminlog.php, and comment URLs are echoed into href attributes in editrightbar.php, enabling script execution with elevated privileges.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary scripts with administrator or editor privileges within the affected web application context. This can lead to session hijacking, unauthorized actions, or other attacks leveraging the elevated privileges of the victim user. The CVSS 4.0 score is 5.3, indicating a medium severity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to admin interfaces and consider input validation or sanitization workarounds to mitigate script injection risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-03T12:05:26.755Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac19059a43b0b3b89f1654b
Added to database: 10/03/2026, 23:31:37 UTC
Last enriched: 10/03/2026, 23:46:06 UTC
Last updated: 10/08/2026, 06:48:15 UTC
Views: 83
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