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