CVE-2025-52575Public exploitNetwork attack vector

Directory enumeration via unescaped LDAP username filter

Published Jul 21, 2025 · Updated Jul 21, 2025

Blind LDAP injection in EspoCRM 9.1.6 and earlier allows remote attackers to enumerate directory users through the login form. The findLdapUserDnByUsername function inserts the username directly into an LDAP filter, so wildcard and metacharacter input changes the query and returns the first matching DN. LDAP authentication must be enabled; directory configuration determines whether the flaw also exposes directory information or interrupts LDAP service.

CVSS severity6.5
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind LDAP injection in EspoCRM 9.1.6 and earlier allows remote attackers to enumerate directory users through the login form. The findLdapUserDnByUsername function inserts the username directly into an LDAP filter, so wildcard and metacharacter input changes the query and returns the first matching DN. LDAP authentication must be enabled; directory configuration determines whether the flaw also exposes directory information or interrupts LDAP service.

The record

CVE
CVE-2025-52575
Published
Jul 21, 2025
Updated
Jul 21, 2025
Vendor
EspoCRM
Product
EspoCRM
Classifications
CWE-90, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EspoCRM · EspoCRMversion=< 9.1.7

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-90Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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