CVE-2026-100157 Code injection in WP Ultimate Review
Unauthenticated attackers can execute arbitrary shortcodes in WP Ultimate Review due to improper validation, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100157?
CVE-2026-100157 is a medium-severity code injection vulnerability in roxnor WP Ultimate Review, published on 3 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The The WP Ultimate Review plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.4.3. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. The nonce required to pass the only gate is emitted to unauthenticated visitors via the public review form, and submitted shortcode payloads are auto-published without admin approval by default, meaning exploitation requires no account and no privileged interaction.
Weakness: CWE-94
Which versions are affected by CVE-2026-100157?
How do I fix CVE-2026-100157?
No fix has been published for CVE-2026-100157 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-100157 being exploited?
There is no known exploitation of CVE-2026-100157 in the wild and no public exploit code.
Sources
Also known as GHSA-cpg8-jrv8-64x9.