CVE-2026-19883 json
WPeMatico RSS Feed Fetcher <= 2.8.24 - Authenticated (Subscriber+) Privilege Escalation via Arbitrary Option Update to wpematico_import_settings admin_action
published 2mo ago modified 28d ago also EUVD-2026-64207
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_import_settings function in all versions up to, and including, 2.8.24. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access.
Patch / fix
Is CVE-2026-19883 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2mo ago
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- etruel WPeMatico RSS Feed Fetcher
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
- Technology feeds
References
- github.com /etruel/wpematico/commit/e297f41b49c6ec76635b006dff8a964a99a1ed24
- wordfence.com /threat-intel/vulnerabilities/id/4e591cb4-058d-4d8e-948e-d65ab01db618?source=cve
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.24/app/wpematico_functions.php#L2077
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.24/app/wpematico_functions.php#L2096
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.24/app/tools_page.php#L224
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.24/wpematico_class.php#L59
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.23/app/wpematico_functions.php#L2077
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.23/app/wpematico_functions.php#L2096
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.23/app/tools_page.php#L224
- plugins.trac.wordpress.org /browser/wpematico/tags/2.8.23/wpematico_class.php#L59
Sources
- CVE List CVE-2026-19883
- NVD CVE-2026-19883
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.