CVE-2026-120573 json
WPeMatico RSS Feed Fetcher <= 2.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'post_category' Parameter
published 2d ago modified yesterday also EUVD-2026-124990
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_category' parameter in all versions up to, and including, 2.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is persisted in post meta as campaign_data, bypassing wp_kses sanitization, and executes in the browser session of any user with edit_posts — including Administrators — who opens the WPeMatico campaigns list screen.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- etruel WPeMatico RSS Feed Fetcher
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/d93d4360-b66c-499a-838c-e8eea36bd364?source=cve
- plugins.trac.wordpress.org /browser/wpematico/tags/2.9.1/includes/campaigns_list.php#L820
- plugins.trac.wordpress.org /browser/wpematico/tags/2.9.1/includes/wpematico_functions.php#L1106
- plugins.trac.wordpress.org /browser/wpematico/tags/2.9.1/includes/campaign_edit.php#L540
- github.com /etruel/wpematico/tree/2.9.2
Sources
- CVE List CVE-2026-120573
- NVD CVE-2026-120573
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