W (wcms) through 3.18.0 Unauthenticated Stored XSS via Login Username and Comments
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| vincent-peugnet | wcms | up to 3.18.0 | — | No fix listed | CNA |
- wcms Vendorvincent-peugnet Affected up to 3.18.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-04 Threatist record created from CVE-2026-105124
- 2026-10-04 Alias added: GHSA-f4pc-vr7p-jfm7
- 2026-10-06 CISA SSVC decision points changed
References
Other 5
- GitHub Issue #662
- https://github.com/vincent-peugnet/wcms
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/class/Controllerconnect.php#L56
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/view/templates/adminlog.php#L71
- https://github.com/vincent-peugnet/wcms/blob/cda5bcdb95dbdb1e804fdfe0e5fd2e2b2f8a90e2/app/view/templates/editrightbar.php#L110
More vincent-peugnet vulnerabilities
- TI-2026-67498 W (wcms) through 3.18.0 RCE and Arbitrary File Write via Media Upload API CVSS 4.0HIGH 8.7
Sources
- CVE-2026-105124 · CVE Program
- CVE-2026-105124 · NVD
- FIRST EPSS
- GHSA-f4pc-vr7p-jfm7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences