CVE-2021-3740

Session Fixation in chatwoot/chatwoot

Description

A Session Fixation vulnerability exists in chatwoot/chatwoot versions prior to 2.4.0. The application does not invalidate existing sessions on other devices when a user changes their password, allowing old sessions to persist. This can lead to unauthorized access if an attacker has obtained a session token.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
EPSS 0.04%
Affected: chatwoot chatwoot/chatwoot
Published at:
Updated at:

References

Link Tags
https://huntr.com/bounties/1625470476437-chatwoot/chatwoot
https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c

Frequently Asked Questions

What is the severity of CVE-2021-3740?
CVE-2021-3740 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3740?
To fix CVE-2021-3740, 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-2021-3740 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3740 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-2021-3740?
CVE-2021-3740 affects chatwoot chatwoot/chatwoot.
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.