Is CVE-2026-13252 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-13252 being exploited in the wild.

How severe is CVE-2026-13252?

Medium severity, with a CVSS score of 6.4, published 2 July 2026.

Which products and versions are affected?

Themeisle RSS Aggregator by Feedzy up to, and including, 5.2.1.

Is there a fix for CVE-2026-13252?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-13252 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-13252?

Check whether you run Themeisle RSS Aggregator by Feedzy at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-13252: ThemeIsle Feedzy RSS Aggregator Stored XSS via aspectRatio attribute

CVE-2026-13252 · Severity: medium · CVSS 6.4 · Published 2026-07-02

The Feedzy RSS Aggregator plugin for WordPress, which is used to automatically import and display content from RSS feeds and YouTube, is vulnerable to a security flaw. An attacker with contributor-level access can inject malicious scripts into website pages. When other users or administrators visit these pages, the scripts will execute, potentially leading to unauthorized actions or data theft.

Technologies: Themeisle RSS Aggregator by Feedzy. Vendors: Themeisle.

Quick answers

Is CVE-2026-13252 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-13252 being exploited in the wild.
How severe is CVE-2026-13252?: Medium severity, with a CVSS score of 6.4, published 2 July 2026.
Which products and versions are affected?: Themeisle RSS Aggregator by Feedzy up to, and including, 5.2.1.
Is there a fix for CVE-2026-13252?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-13252 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-13252?: Check whether you run Themeisle RSS Aggregator by Feedzy at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Feedzy RSS Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping of the 'aspectRatio' attribute. This vulnerability allows authenticated attackers with contributor-level permissions or higher to inject arbitrary web scripts into pages. Because the scripts are stored on the server, they will execute in the browser of any user who visits the affected page. The issue exists in all versions up to and including 5.2.1. A patch appears to be available in subsequent versions based on the provided changeset references.

Affected products

ThemeIsle RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator up to, and including, 5.2.1

Timeline

2026-07-02: disclosed
2026-07-02: advisory

References

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