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.

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

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. 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

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