CVE-2026-7654: Admin Columns <= 7.0.18 - Authenticated (Contributor+) PHP Object Injection to Remote Code Execution via Custom Field Meta Value
Vulnerability summary
CVE-2026-7654 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in codepress admin columns. EPSS estimates a 1.23% chance of exploitation in the next 30 days, higher than 68.6% of scored vulnerabilities. Fixed in 7.0.19.
Timeline
- 05-06-2026PublishedVulnerability first disclosed.
- 06-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.23%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
Increase +0.32 pp
From 0.91% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Codepress1 product
- admin columns≤ 7.0.18
Wordpress1 product
- codepress-admin-columns≤ 7.0.18 (fixed in 7.0.19)
2 vendors · 2 products