CVE-2024-13709: Linear <= 2.8.1 - Cross-Site Request Forgery to Cache Reset

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-25 · updated 2026-06-17
Weakness: CWE-352

Description

The Linear plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.8.1. This is due to missing or incorrect nonce validation on the 'linear-debug'. This makes it possible for unauthenticated attackers to reset the plugin's cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

linearoy Linear: through 2.8.1

References

https://plugins.trac.wordpress.org/browser/linear/trunk/includes/class-linear-settings.php#L1874
https://plugins.trac.wordpress.org/changeset/3231249
https://www.wordfence.com/threat-intel/vulnerabilities/id/83af4ee4-2763-4706-8cb2-fa102a72be68?source=cve

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