CVE-2026-78318

MEDIUM CVSS 3.1: 6.1 EPSS 0.25%
Updated Sep 14, 2026
Apache
Parameter Value
CVSS 6.1 (MEDIUM)
Affected Versions 4.0.4 — 4.0.7
Fixed In 4.0.8
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Apache
Public PoC No

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Syncope. The notification message, as optionally shown by Console's and Enduser's login pages can be instructed to display HTML tags with unsafe JS inline, via malicious HTTP link generation. This issue affects Apache Syncope: from 4.0.4 through 4.0.7, from 4.1.0-M0 through 4.1.2.

Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v3.1