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CVE-2026-71294

7.6 · HIGH

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated.

Published Aug 5, 2026CWE-502EPSS 0.38%

Overview

CVE-2026-71294 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed to with no restriction, reachable by any member with write access to comments (the default setting in plugins/comments/comments.setup.php).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Cotonti/CotontiGitHubgithub.com/Cotonti/Cotonti/blob/master/plugins/comments/controllers/actions/CreateAction.php

How CyberStrike helps

Frequently asked questions

What is CVE-2026-71294?

CVE-2026-71294 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2026-71294?

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-71294?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-71294?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-71294 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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