CVE-2023-1421
6.1
MEDIUM
CVSS 3.1
EPSS 0.63%
Description
A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.
How to fix CVE-2023-1421
To remediate CVE-2023-1421, upgrade the affected package to a fixed version below.
- Bitnami/mattermost—upgrade to 7.7.0 or later
Is CVE-2023-1421 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 5.32.0, < 7.7.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |