---
id: CVE-2026-55745
title: 'Cotonti:  Cross-Site Request Forgery in the Personal File Storage (PFS) module'
summary: 'Cotonti:  Cross-Site Request Forgery in the Personal File Storage (PFS) module'
severity: medium
cvss: 5.4
cwe:
  - CWE-352
vendor: cotonti
product: cotonti/cotonti
ecosystem: composer
affected:
  - cotonti/cotonti <= 1.0.0
published: '2026-06-18'
updated: '2026-06-19'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-hp3v-wp32-953h'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55745'
  - url: 'https://github.com/Cotonti/Cotonti'
  - url: >-
      https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/modules/pfs/inc/pfs.editfolder.php#L90
  - url: 'https://github.com/advisories/GHSA-hp3v-wp32-953h'
tags:
  - ghsa
  - composer
epss: 0.00097
epssPercentile: 0.00838
ingestedAt: '2026-06-29T14:31:47.031Z'
---

## Overview

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.editfolder.php, the folder update action ('a=update') updates folder metadata (title, description, public/gallery flags) without calling cot_check_xg() to validate the anti-CSRF token. A remote attacker who lures an authenticated user into visiting a malicious page can force the browser to submit a forged request that modifies the victim's folder metadata, including making a private folder public.

## Affected packages

- `cotonti/cotonti <= 1.0.0`

## Remediation

Refer to the advisory for the patched release.