CVE-2025-52892 — EspoCRM is vulnerable to access denial through double slash in URI corrupting router cache
EspoCRM is a web application with a frontend designed as a single-page application and a REST API backend written in PHP. In versions 9.1.6 and below, if a user loads Espo in th…
Published: 2025-08-05 · CVSS: 4.5 · CVSS 3.1
EspoCRM is a web application with a frontend designed as a single-page application and a REST API backend written in PHP. In versions 9.1.6 and below, if a user loads Espo in the browser with double slashes (e.g https://domain//#Admin) and the webserver does not strip the double slash, it can cause a corrupted Slim router's cache. This will make the instance unusable until there is a completed rebuild. This is fixed in version 9.1.7.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7