# CVE-2026-107435: WP Chill Strong Testimonials stored cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-107435-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-107435 · Severity: high · CVSS 7.1 · Published 2026-10-21

Strong Testimonials is a WordPress plugin that collects and displays customer testimonials on websites. A stored cross-site scripting vulnerability allows attackers to inject malicious scripts that persist on the site and are executed in visitors' browsers, potentially stealing session data or account credentials. Exploitation requires a privileged user to be tricked into clicking a malicious link or visiting a crafted page.

Technologies: [WP Chill Strong Testimonials](https://junglewise.ai/threats/technologies/wp-chill-strong-testimonials). Vendors: [WP Chill](https://junglewise.ai/threats/vendors/wp-chill).

## Quick answers

**Is CVE-2026-107435 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-107435 being exploited in the wild.

**How severe is CVE-2026-107435?** High severity, with a CVSS score of 7.1, published 21 October 2026.

**Which products and versions are affected?** WP Chill Strong Testimonials up to 3.3.12.

**Is there a fix for CVE-2026-107435?** Yes: fixed in 3.3.13. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-107435 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-107435?** Check whether you run WP Chill Strong Testimonials 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.

## How to fix

- Fixed in 3.3.13

## Technical details

The plugin improperly neutralizes user input during web page generation, allowing stored XSS injection. The vulnerability affects Strong Testimonials up to version 3.3.12 and requires user interaction—specifically a privileged user performing an action such as clicking a link or submitting a form. Attackers can inject persistent malicious scripts that execute for all site visitors, compromising visitor accounts and stealing data; the issue is fixed in version 3.3.13.

## Affected products

- WP Chill Strong Testimonials up to 3.3.12

## Timeline

- 2026-10-21: disclosed
- 2026-10-19: advisory

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/strong-testimonials/vulnerability/wordpress-strong-testimonials-plugin-3-3-12-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/strong-testimonials/vulnerability/wordpress-strong-testimonials-plugin-3-3-12-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [WP Chill Strong Testimonials XSS in content injection](https://junglewise.ai/threats/cve-2026-121028-improper-neutralization-of-script-related-html-tags-in-a-web)
- [WP Chill Strong Testimonials stored cross-site scripting](https://junglewise.ai/threats/cve-2026-114706-improper-neutralization-of-input-during-web-page-generation)
- [WP Chill Strong Testimonials broken access control](https://junglewise.ai/threats/cve-2026-112843-missing-authorization-vulnerability-in-wp-chill-strong)
- [WP Chill Strong Testimonials object injection](https://junglewise.ai/threats/cve-2026-107436-deserialization-of-untrusted-data-vulnerability-in-wp-chill)