# CVE-2026-55741: Cotonti CSRF in administration configuration handler

Source: https://junglewise.ai/threats/cve-2026-55741-cotonti-csrf-in-administration-configuration-handler  
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-2026-55741 · Severity: high · CVSS 8.8 · Published 2026-06-18

Cotonti, a content management system used for building websites, contains a security flaw that could allow an attacker to change site settings. By tricking a logged-in administrator into clicking a malicious link or visiting a compromised website, an attacker can remotely modify core system configurations. This could lead to a total takeover of the website, data theft, or the disabling of security features.

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

## Quick answers

**Is CVE-2026-55741 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55741 being exploited in the wild.

**How severe is CVE-2026-55741?** High severity, with a CVSS score of 8.8, published 18 June 2026.

**Which products and versions are affected?** Cotonti 1.0.0 (master branch commit f43f1fc3).

**Is there a fix for CVE-2026-55741?** 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-2026-55741 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-55741?** Check whether you run Cotonti 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 'system/admin/admin.config.php' component. The configuration update action ('a=update') utilizes the cot_config_update_options() function to process POST data but fails to implement a call to cot_check_xg(), which is the application's standard mechanism for validating anti-CSRF tokens. An attacker can exploit this by inducing an authenticated administrator to submit a forged request. Successful exploitation allows the attacker to modify arbitrary core, module, or plugin configuration options, potentially leading to full site compromise or the weakening of other security controls.

## Affected products

- Cotonti Cotonti 1.0.0 (master branch commit f43f1fc3)

## 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/system/admin/admin.config.php](https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/system/admin/admin.config.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)