Apache Syncope: Unauthenticated reflected XSS in Console and Enduser

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78318
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 13:18:47 UTC
Updated2026-09-14 20:58:48 UTC
DescriptionImproper 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.002470000 probability, percentile 0.161490000 (date 2026-09-15)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Syncope affected 4.0.4 4.0.7 semver Not specified
CNA Apache Software Foundation Apache Syncope affected 4.1.0-M0 4.1.2 semver Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/09/14/18 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
lists.apache.org/thread/wmo15rczvd0w3ywjgqdrcznkb1v3qy9r [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Alon Galili (en)

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