CVE-2021-40369

Name: CVE-2021-40369
Creator: NVD / NIST
Published: 2021-11-24T12:15:07.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 3.31%

Last modified Jun 17, 2026

CVE-2021-40369 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A carefully crafted plugin link invocation could trigger an XSS vulnerability on Apache JSPWiki, related to the Denounce plugin, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Apache JSPWiki users should upgrade to 2.11.0 or later.. EPSS estimates a 3.31% chance of exploitation in the next 30 days.

Description

A carefully crafted plugin link invocation could trigger an XSS vulnerability on Apache JSPWiki, related to the Denounce plugin, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Apache JSPWiki users should upgrade to 2.11.0 or later.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

3.31%

87.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Apache	Jspwiki	< 2.11.0

References

http://www.openwall.com/lists/oss-security/2022/08/03/3Mailing List, Third Party Advisory
https://jspwiki-wiki.apache.org/Wiki.jsp?page=CVE-2021-40369Vendor Advisory
https://lists.apache.org/thread/r2j00nrnpjgcmoxvlv3pgfoq9kzrcsfhVendor Advisory
http://www.openwall.com/lists/oss-security/2022/08/03/3Mailing List, Third Party Advisory
https://jspwiki-wiki.apache.org/Wiki.jsp?page=CVE-2021-40369Vendor Advisory
https://lists.apache.org/thread/r2j00nrnpjgcmoxvlv3pgfoq9kzrcsfhVendor Advisory

Timeline

Published: Nov 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40369?

How severe is CVE-2021-40369?

CVE-2021-40369 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 3.31% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40369?

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-2021-40369?

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

Scan your code now

Source: NVD / NIST