LOW 2.1 NVD
CVE-2026-67350
Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites
Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y. Attackers can craft trusted-looking URLs leveraging the legitimate blog domain to conduct phishing, deliver malware, or bypass URL reputation filters.
References
- https://github.com/s9y/Serendipity/security/advisories/GHSA-77rw-27c5-4hxm
- https://www.vulncheck.com/advisories/serendipity-open-redirect-via-exit-php
- https://github.com/s9y/Serendipity/security/advisories/GHSA-77rw-27c5-4hxm
This low severity vulnerability with a CVSS score of 2.1 was published on 2026-07-31 via NVD.
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