CVE-2025-52892

Published: Aug 5, 2025Modified: Jun 17, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (1)

Products: Espocrm: Espocrm

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Espocrm Espocrm	Before 9.1.7

Related CWEs

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (2)

https://github.com/espocrm/espocrm/commit/929611f317ce8892ea75873b0ab3094c0c510ff3

Source: security-advisories@github.com

Patch

https://github.com/espocrm/espocrm/security/advisories/GHSA-26x2-6wch-j8pf

Source: security-advisories@github.com

Vendor Advisory

Timeline

No history available yet.