CVE detail
CVE-2026-7635
The coreActivity: Activity Logging for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.0. This is due to the plugin failing to validate or strip PHP serialization syntax from the User-Agent HTTP header before storing it in the logmeta table, and subsequently calling `maybe_unserialize()` on every retrieved `meta_value` in `query_metas()` without verifying the data was originally serialized by the application. This makes it possible for unauthenticated attackers to inject a crafted PHP serialized payload via the User-Agent header during any logged event (such as a failed login attempt), which, when an administrator views the Logs page, is deserialized and passed to `DeviceDetector::setUserAgent()`, triggering a Fatal TypeError that creates a persistent Denial of Service condition blocking administrator access to the Logs page entirely.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 25.6 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
12 source links · newest first
- https://www.wordfence.com/threat-intel/vulnerabilities/id/59f30135-6dd9-4367-90a9-a10ad491357d?source=cvewww.wordfence.com
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Patchwww.wordfence.comMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/trunk/vendor/dev4press/library/dev4press/wordpress/admin/Table.php#L290plugins.trac.wordpress.org
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Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/trunk/vendor/dev4press/library/dev4press/core/plugins/DBLite.php#L268plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/trunk/core/table/Logs.php#L161plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/trunk/core/log/Device.php#L35plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/trunk/core/log/Core.php#L252plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/tags/3.0/vendor/dev4press/library/dev4press/wordpress/admin/Table.php#L290plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/tags/3.0/vendor/dev4press/library/dev4press/core/plugins/DBLite.php#L268plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/tags/3.0/core/table/Logs.php#L161plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/tags/3.0/core/log/Device.php#L35plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://plugins.trac.wordpress.org/browser/coreactivity/tags/3.0/core/log/Core.php#L252plugins.trac.wordpress.org
No excerpt available.
Patchplugins.trac.wordpress.orgMay 13, 2026, 5:16 AM - https://github.com/dev4press/coreactivity/pull/3/changes/1f09331d66de7cf4bba9b6e396b0d4e7597fcde2github.com
No excerpt available.
Exploitgithub.comMay 13, 2026, 5:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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