CVE-2026-16957
Slim SEO < 4.9.11 - Contributor+ Arbitrary Post Meta Disclosure
Description
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.
INFO
Published Date :
Aug. 9, 2026, 6:17 a.m.
Last Modified :
Aug. 9, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-16957
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Slim SEO WordPress plugin to version 4.9.11 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-16957.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/08e8c64b-50a4-4865-a33d-275644dcb850/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-16957 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-16957
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-16957 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-16957 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 09, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'Slim SEO', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '4.9.11', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description 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. Added Reference https://wpscan.com/vulnerability/08e8c64b-50a4-4865-a33d-275644dcb850/