CVE-2026-55744
Cotonti CSRF in PFS allows forced arbitrary file upload
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.
INFO
Published Date :
June 18, 2026, 6:06 a.m.
Last Modified :
June 18, 2026, 6:06 a.m.
Remotely Exploit :
Yes !
Source :
TuranSec
Affected Products
The following products are affected by CVE-2026-55744
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c | ||||
| CVSS 4.0 | HIGH | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c |
Solution
- Validate anti-CSRF tokens for all file upload actions.
- Ensure cot_check_xg() is called before processing uploads.
- Update the Cotonti CMS to the latest version.
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CVE-2026-55744 vulnerability anywhere in the article.