CVE-2025-52892 – EspoCRM Double Slash URL Vulnerability (Cache Corruption)

The following table lists the changes that have been made to the
CVE-2025-52892 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 05, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
    Added CWE CWE-444
    Added Reference https://github.com/espocrm/espocrm/commit/929611f317ce8892ea75873b0ab3094c0c510ff3
    Added Reference https://github.com/espocrm/espocrm/security/advisories/GHSA-26×2-6wch-j8pf
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