CVE-2026-25560CWE-90

WeKan < 8.19 LDAP Authentication Filter Injection

High · published February 7, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
61.6
In the wild
Unconfirmed
What it is

⚡ An LDAP filter injection vulnerability lurks in WeKan versions before 8.19, letting attackers slip in undetected! 🔥 Think of LDAP authentication like a restaurant where the chef uses a guest's name to prepare their meal. If the guest can add secret ingredients to their meal order, they could potentially poison the dish without anyone noticing! With this vulnerability, a malicious actor could craft a username that manipulates LDAP searches, allowing them unauthorized access or impersonation. This could lead to data breaches or further exploitation of your system, making it crucial to act swiftly!

Put simply

Think of LDAP authentication like a restaurant where the chef uses a guest's name to prepare their meal. If the guest can add secret ingredients to their meal order, they could potentially poison the dish without anyone noticing! The vulnerability arises from inadequate escaping of user-supplied input in LDAP search filters and DN values. This allows attackers to alter LDAP queries during the authentication process, leading to potential unauthorized access.

What to do

With this vulnerability, a malicious actor could craft a username that manipulates LDAP searches, allowing them unauthorized access or impersonation. This could lead to data breaches or further exploitation of your system, making it crucial to act swiftly! Upgrade to WeKan version 8.19 or later to mitigate this vulnerability. Additionally, ensure all user inputs are properly sanitized and validate against expected formats to bolster your authentication security. You've got this! Follow these steps, and you'll secure your WeKan installation in no time! 🛡️

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00971 · 61.6th percentile
Weakness
CWE-90 · Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Published
2026-02-07T21:56Z
EPSS history
Timeline
  • 07 FEB 21:56Z
    WeKan < 8.19 LDAP Authentication Filter Injection
    cvelistv5