7.2
HIGH CVSS 3.1
CVE-2026-109207
RSS Aggregator by Feedzy <= 5.2.11 - Unauthenticated Stored Cross-Site Scripting via RSS media:thumbnail URL
Description

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.

INFO

Published Date :

Oct. 16, 2026, 4:18 a.m.

Last Modified :

Oct. 16, 2026, 4:18 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-109207 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.

ID Vendor Product Action
1 Themeisle rss_aggregator_by_feedzy
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH MITRE-CVE
CVSS 3.1 HIGH [email protected]
Solution
Update the Feedzy plugin to version 5.2.12 or later to fix the stored XSS vulnerability.
  • Update the Feedzy plugin to the latest version.
  • Verify plugin is updated to 5.2.12 or higher.
  • Sanitize and escape all user-provided input.
  • Review external RSS feed configurations.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-109207 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-2026-109207 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-2026-109207 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-109207 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]

    Oct. 16, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
    Added CWE CWE-79
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/109xxx/CVE-2026-109207.json">CVE-2026-109207</a>
    Added Reference https://downloads.wordpress.org/plugin/feedzy-rss-feeds.5.2.12.zip
    Added Reference https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/abstract/feedzy-rss-feeds-admin-abstract.php#L2134
    Added Reference https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L1241
    Added Reference https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L2951
    Added Reference https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L3413
    Added Reference https://plugins.trac.wordpress.org/browser/feedzy-rss-feeds/tags/5.2.11/includes/admin/feedzy-rss-feeds-import.php#L989
    Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/ab1d8bcb-688a-4763-970a-c960925cf0b6?source=cve
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.