Stored cross-site scripting in Feedzy RSS Aggregator for WordPress
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- 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 RSS Aggregator by Feedzy plugin for WordPress through 5.2.11 does not sufficiently sanitize or escape the media:thumbnail URL taken from imported RSS feeds, which allows stored cross-site scripting (CWE-79). An unauthenticated attacker who controls an external RSS feed that the site already imports can inject arbitrary web scripts. The scripts run whenever a user opens an injected page.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'media:thumbnail@url' parameter in all versions up to, and including, 5.2.11 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to control an external RSS feed that the target site has already configured for import; no WordPress account or special plugin configuration is needed beyond that condition.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| themeisle | RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator | up to 5.2.11 | — | No fix listed | CNA |
- RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator Vendorthemeisle Affected up to 5.2.11 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for RSS Aggregator by Feedzy.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-109207
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-16 Alias added: GHSA-9qvh-c8j2-mhj7
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ab1d8bcb-688a-4763-970a-c960925cf0b6?source=cve
- https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L1241
- https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L989
- https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L2951
- https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L3413
- https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/abstract/feedzy-rss-feeds-admin-abstract.php#L2134
- https://downloads.wordpress.org/plugin/feedzy-rss-feeds.5.2.12.zip
More themeisle vulnerabilities
- TI-2017-14315 WordPress Insert PHP Plugin < 3.3.1 PHP Code Injection via REST API CVSS 4.0CRITICAL 9.3
- TI-2023-02146 Otter - Gutenberg Blocks < 2.2.6 - Author+ PHAR Deserialization CVSS 3.1HIGH 8.8
- TI-2023-20819 WordPress Redirection for Contact Form 7 plugin <= 2.9.2 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
- TI-2019-12631 A blind SSRF vulnerability exists in the Visualizer plugin before 3.3.1 for WordPress via… CVSS 3.1CRITICAL 10.0
- TI-2023-02115 Product Addons & Fields for WooCommerce < 32.0.7 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2022-04265 RSS Aggregator by Feedzy < 4.1.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-109207 · CVE Program
- CVE-2026-109207 · NVD
- FIRST EPSS
- GHSA-9qvh-c8j2-mhj7 · 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