CVE-2026-8441 WP Review Slider Pro <= 12.7.2 - Unauthenticated SQL Injection via 'notinstring' Parameter
Unauthenticated attackers can extract arbitrary database data via SQL injection in the WP Review Slider Pro plugin.
- 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-2026-8441?
CVE-2026-8441 is a high-severity SQL injection vulnerability in https://wpreviewslider.com/ WP Review Slider Pro, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WP Review Slider Pro plugin for WordPress is vulnerable to SQL Injection via the 'notinstring' parameter of the wprp_load_more_revs AJAX action in versions up to, and including, 12.7.2. The parameter is read via $_POST['notinstring'] and passed through sanitize_text_field() — which strips HTML and whitespace but does not provide SQL safety. The value is then concatenated directly into a numeric/unquoted `AND id NOT IN (...)` clause and executed via $wpdb->get_results() without $wpdb->prepare() or intval() casting. Because the value sits in an unquoted numeric context, WordPress's wp_magic_quotes protection (which only escapes embedded quotes) is ineffective. The AJAX hook is registered via wp_ajax_nopriv_wprp_load_more_revs, and the required check_ajax_referer nonce is publicly available via wp_localize_script on any frontend page that renders the plugin shortcode, so an unauthenticated attacker who can reach a public page hosting the plugin can extract arbitrary data from the database via blind/time-based injection.
Weakness: CWE-89
Which versions are affected by CVE-2026-8441?
How do I fix CVE-2026-8441?
No fix has been published for CVE-2026-8441 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-8441 being exploited?
There is no known exploitation of CVE-2026-8441 in the wild and no public exploit code.
Sources
Also known as GHSA-cmjq-cjh2-v8q8.