CVE-2020-1961

Name: CVE-2020-1961
Creator: NVD / NIST
Published: 2020-05-04T13:15:14.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.64%

Last modified Jun 17, 2026

CVE-2020-1961 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 4.64% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

4.64%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Apache	Syncope	>= 2.0.0, < 2.0.15
Apache	Syncope	>= 2.1.0, < 2.1.6

References

http://syncope.apache.org/securityVendor Advisory
http://syncope.apache.org/securityVendor Advisory

Timeline

Published: May 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1961?

How severe is CVE-2020-1961?

CVE-2020-1961 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.64% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1961?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1961?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST