CVE-2025-31510

Severity CVSS v4.0:

Pending analysis

Type:

CWE-79 Cross-Site Scripting (XSS)

Publication date:

16/01/2026

Last modified:

16/01/2026

Description

In the portal in LemonLDAP::NG before 2.21.0, cross-site scripting (XSS) allows remote attackers to inject arbitrary web script or HTML (into the login page) via the tab parameter, for Choice authentication.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

7.20

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/3341
https://lists.debian.org/debian-lts-announce/2025/04/msg00017.html