Cross-Site Scripting Vulnerability in LemonLDAP::NG Portal
CVE-2025-31510

7.2HIGH

Key Information:

Vendor

Lemonldap-ng

Status
Lemonldap::ng
Vendor
CVE Published:
16 January 2026

What is CVE-2025-31510?

A vulnerability exists in the LemonLDAP::NG portal prior to version 2.21.0 that enables attackers to perform cross-site scripting (XSS) attacks. By manipulating the tab parameter, remote adversaries can inject arbitrary web scripts or HTML into the login page, potentially compromising user credentials and session data. This vulnerability underscores the necessity for robust input validation and security measures to safeguard web applications from such exploits.

Affected Version(s)

LemonLDAP::NG 2.0.8 < 2.16.5

LemonLDAP::NG 2.17.0 < 2.21.0

References

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.