Vulnerability Description
A vulnerability has been found in Piwigo 16.3.0. This impacts an unknown function of the component Public Authentication Page. Such manipulation of the argument lang leads to cross site scripting. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 16.4.0 will fix this issue. The name of the patch is 5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9e. It is recommended to upgrade the affected component.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/Leousum/VulnPoC/blob/main/Piwigo%2016.3.0/reflected_XSS.md
- https://github.com/Piwigo/Piwigo/
- https://github.com/Piwigo/Piwigo/commit/5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9e
- https://github.com/Piwigo/Piwigo/releases/tag/16.4.0
- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-rr39-mf4j-6594
- https://vuldb.com/cve/CVE-2026-78187
- https://vuldb.com/submit/885228
- https://vuldb.com/vuln/394569
- https://vuldb.com/vuln/394569/cti
FAQ
What is CVE-2026-78187?
CVE-2026-78187 is a vulnerability with a CVSS score of 3.1 (LOW). A vulnerability has been found in Piwigo 16.3.0. This impacts an unknown function of the component Public Authentication Page. Such manipulation of the argument lang leads to cross site scripting. The...
How severe is CVE-2026-78187?
CVE-2026-78187 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-78187?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.