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CVE-2025-52892

EspoCRM is vulnerable to access denial through double slash in URI corrupting router cache

Published: Aug 5, 2025Updated: Sep 11, 2025 Sources: CVE List NVDCWE-444
4.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 84.1%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-444

Affected Products

espocrm
oss-project
espocrmOn-prem
Enterprise Software / crm

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://github.com/espocrm/espocrm/security/advisories/GHSA-26x2-6wch-j8pf
github.com
https://github.com/espocrm/espocrm/commit/929611f317ce8892ea75873b0ab3094c0c510ff3
github.com

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