CVE-2026-16957CWE-639

CVE-2026-16957

Low · published August 9, 2026

CVSS v3.1
2.7
EPSS
0%
Percentile
21.4
In the wild
Unconfirmed
What it is

The Slim SEO WordPress plugin before 4.9.11 does not restrict a post-meta preview feature to posts the user is allowed to edit, verifying only read access, allowing users with the Contributor role to read arbitrary post meta, including protected and private keys, of published posts they do not own, including password-protected posts and posts of non-public post types.

The record
Technical detail
CVSS v3.1
2.7 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00299 · 21.4th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-09T10:17Z
References (1)
https://wpscan.com/vulnerability/08e8c64b-50a4-4865-a33d-275644dcb850/ · [email protected]
EPSS history
Timeline
  • 09 AUG 06:00Z
    Slim SEO < 4.9.11 - Contributor+ Arbitrary Post Meta Disclosure
    cvelistv5