{"id":"GHSA-wx35-cv59-9gwr","aliases":["CVE-2026-55744"],"title":"Cotonti: Cross-Site Request Forgery in the Personal File Storage (PFS) module","description":"Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the Personal File Storage (PFS) module. In modules/pfs/inc/pfs.main.php, the file upload action ('a=upload') processes uploaded files without calling cot_check_xg() to validate the anti-CSRF token, even though sibling actions such as 'delete' (line 272) do. A remote attacker who lures an authenticated user into visiting a malicious page can force the browser to submit a forged multipart request that uploads arbitrary files into the victim's PFS storage.","severity":"high","score":8.1,"published":"2026-06-18T12:40:25.000Z","modified":"2026-09-10T03:50:51.054Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"cotonti/cotonti","ranges":[{"events":[{"introduced":"0"},{"last_affected":"1.0.0"}],"type":"ECOSYSTEM"}],"versions":["0.9.23","0.9.24","0.9.24.1","0.9.24.2","0.9.25","1.0.0"],"fixed":[]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-55744","https://github.com/Cotonti/Cotonti","https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/modules/pfs/inc/pfs.main.php#L118"],"sources":[{"name":"OSV","id":"GHSA-wx35-cv59-9gwr","modified":"2026-09-10T03:50:51.054919996Z","url":"https://osv.dev/vulnerability/GHSA-wx35-cv59-9gwr"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","score":8.1},{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.6}]}