# CVE-2026-8442: WP Review Slider Pro arbitrary file deletion in AJAX handlers

Source: https://junglewise.ai/threats/cve-2026-8442-wp-review-slider-pro-arbitrary-file-deletion-in-ajax-handlers  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-16. Updated: 2026-06-16  
License: CC BY 4.0 with a link back

CVE-2026-8442 · Severity: high · CVSS 8.1 · Published 2026-06-16

WP Review Slider Pro is a WordPress plugin used to display customer reviews from various social media platforms. A security flaw in the plugin allows logged-in users with minimal permissions, such as subscribers, to delete files from the website's server. This could lead to a complete site shutdown or allow an attacker to gain further control over the web server.

Technologies: [WP Review Slider](https://junglewise.ai/threats/technologies/review-slider), [WP Review Slider Pro](https://junglewise.ai/threats/technologies/review-slider-pro). Vendors: [WP Review Slider](https://junglewise.ai/threats/vendors/wp-review-slider).

## Quick answers

**Is CVE-2026-8442 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8442 being exploited in the wild.

**How severe is CVE-2026-8442?** High severity, with a CVSS score of 8.1, published 16 June 2026.

**Which products and versions are affected?** WP Review Slider up to and including 12.6.8; WP Review Slider Pro up to and including 12.6.8.

**Is there a fix for CVE-2026-8442?** 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-2026-8442 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-8442?** Check whether you run WP Review Slider or WP Review Slider Pro 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 vulnerability exists within the wpfb_hide_review and wprp_save_review_admin AJAX handlers. The root cause is a combination of missing authorization checks and insufficient path validation in the wpfb_hidereview_ajax() function. While the function uses strpos() to verify that a stored media URL begins with an expected prefix, it fails to sanitize path traversal sequences (e.g., '../') in the remaining path before passing it to the PHP unlink() function. An authenticated attacker with subscriber-level permissions or higher can exploit this to delete arbitrary files on the server. In some configurations, deleting specific configuration files can lead to remote code execution.

## Affected products

- WP Review Slider WP Review Slider Pro up to and including 12.6.8

## Timeline

- 2026-06-16: advisory: Vulnerability disclosed and CVE assigned

## References

- [https://wpreviewslider.com/](https://wpreviewslider.com/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/f3af6f70-aa7e-4f33-88c0-45befaab2b29?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/f3af6f70-aa7e-4f33-88c0-45befaab2b29?source=cve)

## Related threats

- [WP Review Slider Pro SQL injection in wprp_load_more_revs AJAX action](https://junglewise.ai/threats/cve-2026-8441-wp-review-slider-pro-sql-injection-in-wprp-load-more-revs-ajax)
- [WP Review Slider Pro SQL injection in wpfb_find_reviews AJAX action](https://junglewise.ai/threats/cve-2026-8444-wp-review-slider-pro-sql-injection-in-wpfb-find-reviews-ajax)