PatchSiren cyber security CVE debrief
CVE-2026-7654 codepress CVE debrief
The Admin Columns plugin for WordPress is vulnerable to PHP Object Injection leading to Remote Code Execution in versions up to and including 7.0.18. This is due to the use of `unserialize()` without an `allowed_classes` restriction in the `IdsToCollection::get_ids_from_string()` function, which processes attacker-controlled post meta values without proper validation. This makes it possible for authenticated attackers with Contributor-level access and above to inject a serialized PHP object into a post's custom meta field and trigger arbitrary code execution by exploiting a bundled POP gadget chain, resulting in remote code execution as the web server user.
- Vendor
- codepress
- Product
- Admin Columns
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-05
- Original CVE updated
- 2026-07-23
- Advisory published
- 2026-06-05
- Advisory updated
- 2026-07-23
Who should care
Users of the Admin Columns plugin for WordPress, particularly those with Contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The vulnerability is caused by the use of `unserialize()` without an `allowed_classes` restriction in the `IdsToCollection::get_ids_from_string()` function. This allows attackers to inject a serialized PHP object into a post's custom meta field, which can lead to Remote Code Execution.
Defensive priority
HIGH
Recommended defensive actions
- Update the Admin Columns plugin to a version that is not vulnerable (e.g., version 7.0.19 or later).
- Restrict access to the plugin's functionality to only trusted users.
- Monitor for suspicious activity on the WordPress site.
Evidence notes
The CVE-2026-7654 vulnerability was reported by [email protected] and has a CVSS score of 8.8.
Sources and references
Verified primary and authoritative sources
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CVE-2026-7654 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-7654
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-7654 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7654
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/tags/7.0.16/classes/Formatter/IdsToCollection.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/tags/7.0.16/classes/Formatter/Meta.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/tags/7.0.16/vendor/laravel/serializable-closure/src/Serializers/Native.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/tags/7.0.16/vendor/laravel/serializable-closure/src/Support/ClosureStream.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/trunk/classes/Formatter/IdsToCollection.php
-
Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/trunk/classes/Formatter/Meta.php
-
Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/codepress-admin-columns/trunk/vendor/laravel/serializable-closure/src/Serializers/Native.php
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.