The mCatFilter plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.5.2. This is due to the complete absence of nonce verification and capability checks in the compute_post() function, which processes settings updates. The compute_post() function is called in the plugin constructor on every page load via the plugins_loaded hook, and it directly processes $_POST data to modify plugin settings via update_option() without any CSRF token validation. This makes it possible for unauthenticated attackers to modify all plugin settings, including category exclusion rules, feed exclusion flags, and tag page exclusion flags, via a forged POST request, granted they can trick a site administrator into performing an action such as clicking a link.
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History
Wed, 22 Apr 2026 16:30:00 +0000
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ssvc
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Wed, 22 Apr 2026 12:15:00 +0000
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Chsxf
Chsxf mcatfilter Wordpress Wordpress wordpress |
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Chsxf
Chsxf mcatfilter Wordpress Wordpress wordpress |
Wed, 22 Apr 2026 08:30:00 +0000
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| Description | The mCatFilter plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.5.2. This is due to the complete absence of nonce verification and capability checks in the compute_post() function, which processes settings updates. The compute_post() function is called in the plugin constructor on every page load via the plugins_loaded hook, and it directly processes $_POST data to modify plugin settings via update_option() without any CSRF token validation. This makes it possible for unauthenticated attackers to modify all plugin settings, including category exclusion rules, feed exclusion flags, and tag page exclusion flags, via a forged POST request, granted they can trick a site administrator into performing an action such as clicking a link. | |
| Title | mCatFilter <= 0.5.2 - Cross-Site Request Forgery via compute_post() Function | |
| Weaknesses | CWE-352 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-04-22T07:45:36.467Z
Updated: 2026-04-22T15:31:40.591Z
Reserved: 2026-03-13T15:29:31.027Z
Link: CVE-2026-4139
Updated: 2026-04-22T15:25:49.922Z
Status : Deferred
Published: 2026-04-22T09:16:24.707
Modified: 2026-04-22T20:22:50.570
Link: CVE-2026-4139
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