{"id":"CVE-2021-25294","details":"OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution. This occurs because lib/DataGrid.php calls unserialize for the parametersactivity:ActivityDataGrid parameter. The PHP object injection exploit chain can leverage an __destruct magic method in guzzlehttp.","modified":"2026-08-07T16:57:17.417334Z","published":"2021-01-18T06:15:12.897Z","references":[{"type":"ADVISORY","url":"https://www.opencats.org/news/"},{"type":"FIX","url":"https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.html"},{"type":"EVIDENCE","url":"https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opencats/opencats","events":[{"introduced":"0"},{"last_affected":"77c1f2bcf1bc92f4ca93874d02c7288728df0f87"}],"database_specific":{"cpe":"cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"0.9.5-3"}],"source":"CPE_RANGE"}}],"versions":["0.9.5-3","0.9.5-2","0.9.5-1","0.9.5","0.9.3-3","0.9.3-2","0.9.3-1","0.9.1a","opencats-0.9.3(final)","opencats-0.9.3(alpha)","opencats-0.9.3","0.9.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-25294.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}