Stored cross-site scripting in WPeMatico RSS Feed Fetcher
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The WPeMatico RSS Feed Fetcher plugin for WordPress is affected up to and including 2.9. The plugin removes WordPress's wp_filter_post_kses filter before saving imported RSS feed content, so the raw content is stored verbatim (CWE-79). An unauthenticated attacker who publishes or compromises an RSS feed that an administrator has subscribed a campaign to can inject web scripts that run when a user opens an imported post.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.9 This is due to the plugin removing WordPress's wp_filter_post_kses filter from content_save_pre immediately before calling wp_insert_post() with RSS feed content, whenever the campaign's last editor had the unfiltered_html capability — a flag the plugin sets automatically for every admin-saved campaign. Imported item content is taken raw from $item->get_content(), only entity-decoded, and stored verbatim in post_content. This makes it possible for unauthenticated attackers, who publish or compromise an RSS feed that an administrator has subscribed a WPeMatico campaign to, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected imported post.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for WPeMatico RSS Feed Fetcher.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-110252
- 2026-10-16 Alias added: GHSA-gjv3-f2fr-pfqr
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e87fc1bf-af05-4089-a164-8a2e73c68e8c?source=cve
- https://plugins.trac.wordpress.org/browser/wpematico/tags/2.9/includes/campaign_fetch.php#L400
- https://plugins.trac.wordpress.org/browser/wpematico/tags/2.9/includes/wpematico_functions.php#L3226
- https://plugins.trac.wordpress.org/browser/wpematico/tags/2.9/includes/campaign_fetch.php#L777
- https://plugins.trac.wordpress.org/browser/wpematico/tags/2.9/includes/campaign_fetch.php#L773
- https://plugins.trac.wordpress.org/browser/wpematico/tags/2.9/includes/wpematico_functions.php#L3326
- https://github.com/etruel/wpematico/commit/44c4894a0ad92a711c534ad4d822c0b5d7c3dffe
- https://plugins.trac.wordpress.org/changeset/3747465/wpematico/trunk/includes/campaign_fetch.php
More etruel vulnerabilities
- TI-2026-16117 Improper privilege management in etruel WPeMatico RSS Feed Fetcher CVSS 3.1HIGH 8.8
- TI-2026-41286 WordPress WPeMatico RSS Feed Fetcher plugin <= 2.8.17 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2025-40655 WordPress WP Views Counter plugin <= 2.1.2 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
- TI-2025-31774 WordPress WP Views Counter plugin <= 2.0.3 - Cross Site Scripting (XSS) Vulnerability CVSS 3.1MEDIUM 6.5
- TI-2025-10926 WPeMatico RSS Feed Fetcher <= 2.8.11 - Authenticated (Subscriber+) Server-Side Request Forgery via wpematico_test_feed CVSS 3.1MEDIUM 6.4
- TI-2025-16427 WordPress WP Delete Post Copies plugin <= 5.5 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-110252 · CVE Program
- CVE-2026-110252 · NVD
- FIRST EPSS
- GHSA-gjv3-f2fr-pfqr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences