CVE-2026-23794

Description

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.

PUBLISHED Reserved 2026-01-16 | Published 2026-02-03 | Updated 2026-02-03 | Assigner apache

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Credits

Kasper Karlsson finder

Karin Taliga finder

References

www.openwall.com/lists/oss-security/2026/02/02/1

lists.apache.org/thread/7h30ghqdsf3spl3h7gdmscxofrm8ygjo vendor-advisory

cve.org (CVE-2026-23794)

nvd.nist.gov (CVE-2026-23794)

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