CVE-2025-52892 MEDIUM

CVE-2025-52892: EspoCRM is vulnerable to access denial through double slash in URI corrupting router cache

Vendor Espocrm
Product espocrm
Weakness CWE-444
Published August 5, 2025
Last update August 5, 2025
View on NVD All CVEs

CVSS base score

4.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 5, 2025 CVE published
August 5, 2025 Record updated