{"id":"CVE-2026-67350","summary":"Serendipity \u003c 2.6.1 Open Redirect via exit.php","details":"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.","aliases":["GHSA-77rw-27c5-4hxm"],"modified":"2026-08-04T11:48:06.756838272Z","published":"2026-07-31T14:19:01.218Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-601"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67350.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67350.json"},{"type":"ADVISORY","url":"https://github.com/s9y/Serendipity/security/advisories/GHSA-77rw-27c5-4hxm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67350"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/serendipity-open-redirect-via-exit-php"},{"type":"PACKAGE","url":"https://github.com/s9y/Serendipity"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/s9y/serendipity","events":[{"introduced":"0"},{"fixed":"9aa100a744977cd3d85e462fe5f190c866d7e8a0"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"2.6.1"}]}}],"versions":["2.6.0","2.6-beta1","2.5.0","2.5-beta1","2.4.0","2.4-beta1","2.3.0","2.3-rc1","2.3-beta1","2.2.1-alpha1","2.1.1","2.1.0","2.1-rc1","2.1-beta3","2.1-beta2","2.1-beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67350.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}