CVE-2026-55744
Cotonti CSRF in PFS allows forced arbitrary file upload
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-352 |
| Vendor | cotonti |
| Product | cotonti |
| Published | Jun 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Cotonti / Cotonti
1.0.0
References
Credits
Saidakbarxon Maxsudxonov (sermikro), Innova Networks