# CVE-2022-50947: RadiusTheme Testimonial Slider and Showcase stored XSS in post_title

Source: https://junglewise.ai/threats/cve-2022-50947-radiustheme-testimonial-slider-and-showcase-stored-xss-in-post  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-10. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2022-50947 · Severity: medium · CVSS 6.4 · Published 2026-05-10

The Testimonial Slider and Showcase plugin for WordPress, which is used to display customer reviews on websites, contains a security flaw. This vulnerability allows a user with 'Editor' permissions to inject malicious code into testimonial titles. If an administrator or another user views the affected content, the malicious code could steal their login information or take over their session, potentially leading to a full site compromise.

Vendors: [RadiusTheme](https://junglewise.ai/threats/vendors/radiustheme).

## Quick answers

**Is CVE-2022-50947 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-50947 being exploited in the wild.

**How severe is CVE-2022-50947?** Medium severity, with a CVSS score of 6.4, published 10 May 2026.

**Which products and versions are affected?** RadiusTheme Testimonial Slider and Showcase 2.2.6.

**Is there a fix for CVE-2022-50947?** 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-2022-50947 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2022-50947?** Check whether you run RadiusTheme Testimonial Slider and Showcase 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

A stored cross-site scripting (XSS) vulnerability exists in the RadiusTheme Testimonial Slider and Showcase plugin for WordPress (version 2.2.6). The issue stems from a failure to properly sanitize user-supplied input in the 'post_title' parameter when creating or editing a testimonial. An authenticated attacker with Editor-level privileges can inject malicious JavaScript payloads into the testimonial title field. This script executes in the context of any user (including administrators) who views the draft or published testimonial, potentially allowing for session hijacking, cookie theft, or unauthorized administrative actions. A proof-of-concept exploit involving an 'onerror' attribute in an image tag has been publicly disclosed.

## Affected products

- RadiusTheme Testimonial Slider and Showcase 2.2.6

## Timeline

- 2022-09-02: disclosed: Exploit-DB entry published
- 2026-05-10: advisory: VulnCheck advisory published

## References

- [https://wordpress.org/](https://wordpress.org/)
- [https://wordpress.org/plugins/testimonial-slider-and-showcase/](https://wordpress.org/plugins/testimonial-slider-and-showcase/)
- [https://www.exploit-db.com/exploits/51007](https://www.exploit-db.com/exploits/51007)
- [https://www.vulncheck.com/advisories/wordpress-plugin-testimonial-slider-and-showcase-stored-xss](https://www.vulncheck.com/advisories/wordpress-plugin-testimonial-slider-and-showcase-stored-xss)