CVE-2020-1961 json
Injection in Apache Syncope
published 2020-05-04 6 y ago modified 2026-06-17 4 mo ago also GHSA-4w4p-xwrr-9crh , EUVD-2021-1261
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.8%
- EPSS 4.8% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
Vulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6, enabling attackers to inject arbitrary JEXL expressions, leading to Remote Code Execution (RCE) was discovered.
Patch / fix
- maven org.apache.syncope:syncope-core 2.0.15, 2.1.6
- apache syncope 2.0.15, 2.1.6
Exploit prediction
4.80% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.syncope:syncope-core | >=2.0.0, <2.0.15 >=2.1.0, <2.1.6 |
2.0.15 2.1.6 |
Affected products
- n/a Apache Syncope
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
syncope.apache.org
/security
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-1961
advisory
Sources
- CVE List CVE-2020-1961
- GitHub Advisory GHSA-4w4p-xwrr-9crh
- NVD CVE-2020-1961
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