# CVE-2026-55744: Cotonti CSRF in Personal File Storage module

Source: https://junglewise.ai/threats/cve-2026-55744-cotonti-csrf-in-personal-file-storage-module  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-18. Updated: 2026-06-20  
License: CC BY 4.0 with a link back

CVE-2026-55744 · Severity: high · CVSS 8.1 · Published 2026-06-18

Cotonti, a content management system, contains a security flaw in its Personal File Storage (PFS) module. This vulnerability allows an attacker to trick a logged-in user into unknowingly uploading files to the server by visiting a malicious website. This could lead to unauthorized file storage or potentially more severe server compromises if malicious scripts are uploaded.

Technologies: [Cotonti](https://junglewise.ai/threats/technologies/cotonti), [cotonti/cotonti (Packagist)](https://junglewise.ai/threats/technologies/cotonti-cotonti). Vendors: [Cotonti](https://junglewise.ai/threats/vendors/cotonti), [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2026-55744 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55744 being exploited in the wild.

**How severe is CVE-2026-55744?** High severity, with a CVSS score of 8.1, published 18 June 2026.

**Which products and versions are affected?** Cotonti <= 1.0.0, 1.0.0 (commit f43f1fc3); cotonti/cotonti (Packagist) <= 1.0.0, ECOSYSTEM:introduced=0,last_affected=1.0.0.

**Is there a fix for CVE-2026-55744?** 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-2026-55744 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-55744?** 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 root cause is a failure to validate anti-CSRF tokens in the 'a=upload' action within modules/pfs/inc/pfs.main.php, whereas other actions like 'delete' correctly implement cot_check_xg() validation. An attacker can exploit this by luring an authenticated user to a malicious site that triggers a forged multipart POST request. This allows the attacker to upload arbitrary files to the victim's storage area without their consent.

## Affected products

- Cotonti Cotonti 1.0.0 (commit f43f1fc3)

## Identifiers

- CVE-2026-55744
- GHSA-wx35-cv59-9gwr

## Timeline

- 2026-06-18: advisory: NVD publication date

## References

- [https://github.com/Cotonti/Cotonti](https://github.com/Cotonti/Cotonti)
- [https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/modules/pfs/inc/pfs.main.php](https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/modules/pfs/inc/pfs.main.php)

## Related threats

- [Cotonti weak token generation in user registration](https://junglewise.ai/threats/cve-2026-121553-cotonti-through-1-0-0-generates-registration-and-email-change)
- [Cotonti cross-site request forgery in admin users](https://junglewise.ai/threats/cve-2026-101093-cotonti-through-1-0-0-contains-a-cross-site-request-forgery)
- [Cotonti cross-site request forgery in extensions manager](https://junglewise.ai/threats/cve-2026-100524-cotonti-through-1-0-0-contains-a-cross-site-request-forgery)
- [Cotonti open redirect in message.php](https://junglewise.ai/threats/cve-2026-100523-cotonti-through-1-0-0-contains-an-open-redirect-vulnerability-in)
- [Cotonti reflected cross-site scripting in message.php](https://junglewise.ai/threats/cve-2026-100522-cotonti-through-1-0-0-contains-a-reflected-cross-site-scripting)