CVE-2026-22216wpDiscuz before 7.6.47 - No Rate Limiting on Subscription Endpoints with LIKE Wildcard Bypass

Descripción

wpDiscuz before 7.6.47 contains a missing rate limiting vulnerability that allows unauthenticated attackers to subscribe arbitrary email addresses to post notifications by sending POST requests to the wpdAddSubscription handler in class.WpdiscuzHelperAjax.php. Attackers can exploit LIKE wildcard characters in the subscription query to match multiple email addresses and generate unwanted notification emails to victim accounts.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• wpDiscuz Changelog patchProductRelease Notes
• wpDiscuz productProduct
• VulnCheck Advisory: wpDiscuz before 7.6.47 - No Rate Limiting on Subscription Endpoints with LIKE Wildcard Bypass third-party-advisoryThird Party Advisory