CVE-2026-8442 WP Review Slider Pro <= 12.6.8 - Authenticated (Subscriber+) Arbitrary File Deletion via 'myaction' Parameter

High 8.1 Published Updated

Authenticated subscribers can delete arbitrary files via path traversal in WP Review Slider Pro, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-8442?

CVE-2026-8442 is a high-severity path traversal vulnerability in https://wpreviewslider.com/ WP Review Slider Pro, published on 16 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The WP Review Slider Pro plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to and including 12.6.8. This is due to missing authorization checks on the wpfb_hide_review and wprp_save_review_admin AJAX handlers combined with insufficient path validation in the wpfb_hidereview_ajax() function, which uses strpos() to check that a stored media URL starts with the expected prefix but fails to sanitize path traversal sequences in the remaining relative path before passing it to unlink(). This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the affected site's server which may make remote code execution possible.

Weakness: CWE-22

Which versions are affected by CVE-2026-8442?

How do I fix CVE-2026-8442?

No fix has been published for CVE-2026-8442 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-8442 being exploited?

There is no known exploitation of CVE-2026-8442 in the wild and no public exploit code.

Sources

Also known as GHSA-h2hx-8pjw-mmmw.

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