CVE-2026-23794CWE-79

Apache Syncope: Reflected XSS on Enduser Login

Medium · published February 3, 2026

CVSS v3.1
6.8
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

Reflected XSS in Apache Syncope's Enduser Login page.

An attacker that tricks a legitimate user into clicking a malicious link and logging in to Syncope Enduser could steal that user's credentials.

This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.

Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00512 · 42.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-03T15:15Z
EPSS history
Timeline
  • 03 FEB 15:15Z
    Apache Syncope: Reflected XSS on Enduser Login
    cvelistv5