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CVE-2026-23794 Apache Syncope

Affected softwareApache Syncope
Severity6.8 Medium CVSS 3.1
Fixed in3.0.16, 4.0.4
WeaknessCross-site scripting (CWE-79)
Published3 Feb 2026
Updated17 Jun 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.52% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory
Finding This CVE is MEDIUM severity, is not listed in CISA KEV or VulnCheck KEV, has no public exploit or PoC in any indexed source, carries no CISA Vulnrichment finding of a demonstrated exploit, and is not part of an Oracle Critical Patch Update. None of the signals that would put it in front of an engineer is present, and the volume of CVEs below that bar is too great to take one at a time, so no rule is written for it. This is a decision about what we act on, not a finding that the CVE is harmless — a patch may well be derivable, and a low-severity defect can still be one link in a longer chain.

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui 3.0.0 3.0.16 unbounded
org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui 4.0.0 4.0.4 unbounded

Products and versions

2 products, 4 version entries
SourceVendorProductSchemeAffected versions
nvd apache syncope generic ≥ 3.0.0 and < 3.0.16 · ≥ 4.0.0 and < 4.0.4
osv org.apache.syncope.client.idrepo syncope-client-idrepo-common-ui generic ≥ 3.0.0 and < 3.0.16 · ≥ 4.0.0 and < 4.0.4

References

URLTags
https://github.com/apache/syncope PACKAGE
https://lists.apache.org/thread/7h30ghqdsf3spl3h7gdmscxofrm8ygjo WEB
http://www.openwall.com/lists/oss-security/2026/02/02/1 WEB

Timeline

Published2026-02-03By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.