{"id":"CVE-2026-29001","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-29001","summary":"TastyIgniter 4.4.5 PHP Object Injection via Settings Deserialization","details":"TastyIgniter through 4.4.5 contain a PHP object injection vulnerability that allows authenticated administrators to achieve arbitrary code execution by submitting a serialized PHP object as a settings value, which is stored unsanitized and later unserialized by getValueAttribute() when the setting is read. Attackers can submit a serialized gadget chain, such as one generated via phpggc, through the admin settings form (for example the maintenance_message setting loaded by CheckMaintenance.php) to achieve arbitrary operating-system command execution as the PHP application process user, with the impact persisting until the value is overwritten.","published":"2026-10-21T21:03:25.481Z","modified":"2026-10-24T02:49:51.248274411Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29001.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29001"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/tastyigniter-php-object-injection-via-settings-deserialization"},{"type":"REPORT","url":"https://github.com/tastyigniter/TastyIgniter/issues/1205#issuecomment-6314187869"},{"type":"PACKAGE","url":"https://github.com/tastyigniter/TastyIgniter"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T02:49:51.248274411Z"}}