CVE-2021-41140

Reactions leak for secure category topics and private messages

Description

Discourse-reactions is a plugin for the Discourse platform that allows user to add their reactions to the post. In affected versions reactions given by user to secure topics and private messages are visible. This issue is patched in version 0.2 of discourse-reaction. Users who are unable to update are advised to disable the Discourse-reactions plugin in admin panel.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse-reactions
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse-reactions/security/advisories/GHSA-9358-hwg5-jrmh third party advisory
https://github.com/discourse/discourse-reactions/commit/213d90b82fd15c4186ebc290fee18817d9727d0d third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-41140?
CVE-2021-41140 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41140?
To fix CVE-2021-41140, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41140 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41140 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41140?
CVE-2021-41140 affects discourse discourse-reactions.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.