CVE-2026-23794 json
Apache Syncope: Reflected XSS on Enduser Login
published 2026-02-03 9 mo ago modified 2026-06-17 4 mo ago also GHSA-v84m-gfw5-hm2w , EUVD-2026-5265
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui 3.0.16, 4.0.4
- apache syncope 3.0.16, 4.0.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 9 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N |
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.syncope.client.idrepo:syncope-client-idrepo-common-ui | >=3.0.0, <3.0.16 >=4.0.0, <4.0.4 |
3.0.16 4.0.4 |
Affected products
- Apache Software Foundation Apache Syncope
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
lists.apache.org
/thread/7h30ghqdsf3spl3h7gdmscxofrm8ygjo
vendor-advisory, web, mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2026/02/02/1
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-23794
advisory
-
github.com
/apache/syncope
package
Sources
- CVE List CVE-2026-23794
- GitHub Advisory GHSA-v84m-gfw5-hm2w
- NVD CVE-2026-23794
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