WordPress security changelog
HIGH CVE-2026-7654 Deferred

Admin Columns: Code execution

Admin Columns is affected by code execution. Exploitation requires at least contributor-level access. 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
> 7.0.18
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.

Update Admin Columns to a release after 7.0.18, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

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