Admin Columns: Code execution

Admin Columns is affected by code execution. Exploitation requires an authenticated contributor account. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 7.0.18.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Admin Columns
Plugin slug: codepress-admin-columns
Affected: <= 7.0.18
Safe version: See mitigation notes
Published: Jun 05, 2026
Weakness: CWE-502 — Deserialization of Untrusted Data

This CVE was published Jun 05, 2026 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update Admin Columns when a release after 7.0.18 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 7.0.19, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources

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