What is CVE-2026-23794?

CVE-2026-23794 is a medium-severity vulnerability in Apache Syncope, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-02-03.

How severe is CVE-2026-23794?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Apache Syncope

CVE-2026-23794

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (28.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N.

Affected products

Apache Syncope
Apache Software Foundation Syncope — versions 3.0, 4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@apache.org (vendor-advisory, Mailing List, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-23794?: CVE-2026-23794 is a medium-severity vulnerability in Apache Syncope, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-02-03.
How severe is CVE-2026-23794?: Medium severity. CVSS v3 base score is 6.8 out of 10.