CVE-2026-55744

Cotonti CSRF in PFS allows forced arbitrary file upload

Published Jun 18, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-wx35-cv59-9gwr Cotonti: Cross-Site Request Forgery in the Personal File Storage (PFS) module
History
Type Values Removed Values Added
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. 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.
Title Cotonti - CSRF in PFS Allows Forced Arbitrary File Upload Cotonti CSRF in PFS allows forced arbitrary file upload
Type Values Removed Values Added
Title Cotonti CSRF in PFS allows forced arbitrary file upload Cotonti - CSRF in PFS Allows Forced Arbitrary File Upload
Type Values Removed Values Added
First Time appeared Cotonti
Cotonti cotonti
Vendors & Products Cotonti
Cotonti cotonti
Type Values Removed Values Added
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.
Title Cotonti CSRF in PFS allows forced arbitrary file upload
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, '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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TuranSec
Published
Updated
Aug 10, 2026, 11:44 AM
Reserved
Jun 17, 2026, 12:59 PM
Status
Deferred
Published
Jun 18, 2026, 8:16 AM
Modified
Aug 10, 2026, 12:17 PM