CVE-2026-23794: Apache Syncope: Reflected XSS on Enduser Login

Published Feb 2, 2026
·
Updated

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.

Affected Software

5 affected componentsFixes available
Apache Syncope>=3.0<3.0.15, >=4.0<4.0.3
maven/org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui>=4.0.0<4.0.4
4.0.4
maven/org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui>=3.0.0<3.0.16
3.0.16
Apache Syncope>=3.0.0<3.0.16
Apache Syncope>=4.0.0<4.0.4

Event History

Feb 3, 2026
CVE Published
via MITRE·03:15 PM
Data Sourced
via MITRE·03:15 PM
DescriptionWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·06:30 PM
Data Sourced
via GitHub·06:30 PM
DescriptionSeverityWeaknessAffected Software
Jan 13, 58074
Event
via FIRST·02:58 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-23794?

CVE-2026-23794 has a moderate severity level due to its exploitation potential through reflected cross-site scripting.

2

How do I fix CVE-2026-23794?

To remediate CVE-2026-23794, upgrade Apache Syncope to version 3.0.16 or 4.0.4 or later.

3

Which versions of Apache Syncope are affected by CVE-2026-23794?

CVE-2026-23794 affects Apache Syncope versions from 3.0 to 3.0.15 and versions from 4.0 to 4.0.3.

4

What type of vulnerability is CVE-2026-23794?

CVE-2026-23794 is classified as a reflected cross-site scripting (XSS) vulnerability affecting the Enduser Login page.

5

What can attackers accomplish by exploiting CVE-2026-23794?

Attackers can steal user credentials by tricking users into clicking malicious links that exploit CVE-2026-23794.

Company

Resources

Contact

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