CVE-2021-37859 — HIGH (7.1)

Q: What is CVE-2021-37859?

CVE-2021-37859 is a vulnerability with a CVSS score of 7.1 (HIGH). Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

Q: How severe is CVE-2021-37859?

CVE-2021-37859 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-37859?

Check the references section above for vendor advisories and patch information. Affected products include: Mattermost Mattermost.

Vulnerability Description

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

CVSS Score

7.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

LOW

Affected Products

Vendor	Product	Versions
Mattermost	Mattermost	>= 5.32.0, < 5.34.5

Related Weaknesses (CWE)

CWE-79

References

https://mattermost.com/security-updates/Vendor Advisory
https://mattermost.com/security-updates/Vendor Advisory

FAQ

What is CVE-2021-37859?

CVE-2021-37859 is a vulnerability with a CVSS score of 7.1 (HIGH). Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

How severe is CVE-2021-37859?

CVE-2021-37859 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-37859?

Check the references section above for vendor advisories and patch information. Affected products include: Mattermost Mattermost.