CVE-2026-55745: Cotonti CSRF in Personal File Storage module

CVE-2026-55745 · Severity: medium · CVSS 5.4 · Published 2026-06-18

Cotonti is a content management system used to build and manage websites. A security flaw in its Personal File Storage module allows an attacker to trick a logged-in user into unknowingly performing actions on the site, such as changing folder names or descriptions. Most significantly, this could be used to change a private folder's settings to public, potentially exposing private files to the internet.

Technologies: Cotonti, cotonti/cotonti (Packagist). Vendors: Cotonti, Packagist.

Quick answers

Is CVE-2026-55745 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-55745 being exploited in the wild.
How severe is CVE-2026-55745?
Medium severity, with a CVSS score of 5.4, published 18 June 2026.
Which products and versions are affected?
Cotonti <= 1.0.0, 1.0.0 (master branch commit f43f1fc3); cotonti/cotonti (Packagist) <= 1.0.0, ECOSYSTEM:introduced=0,last_affected=1.0.0.
Is there a fix for CVE-2026-55745?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-55745 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-55745?
Check whether you run Cotonti or cotonti/cotonti (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Cross-Site Request Forgery (CSRF) vulnerability exists in Cotonti 1.0.0 (specifically master branch commit f43f1fc3) within the Personal File Storage (PFS) module. The file 'modules/pfs/inc/pfs.editfolder.php' fails to implement anti-CSRF token validation (via the cot_check_xg() function) for the folder update action ('a=update'). An attacker can exploit this by luring an authenticated user to a malicious website that triggers a forged POST request to the victim's Cotonti instance. This allows the attacker to modify folder titles, descriptions, and visibility flags, potentially escalating the exposure of private data by marking folders as 'public'.

Affected products

  • Cotonti Cotonti 1.0.0 (master branch commit f43f1fc3)

Identifiers

  • CVE-2026-55745
  • GHSA-hp3v-wp32-953h

Timeline

  • 2026-06-18: advisory: CVE published by NVD/TuranSec

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.