CVE-2021-41750
Cross-site Scripting in SEOmatic plugin
6.1
MEDIUM
CVSS 3.1
EPSS 1.0%
Description
A cross-site scripting (XSS) vulnerability in the SEOmatic plugin 3.4.10 for Craft CMS 3 allows remote attackers to inject arbitrary web script via a GET to /index.php?action=seomatic/file/seo-file-link with url parameter containing the base64 encoded URL of a malicious web page / file and fileName parameter containing an arbitrary filename with the intended content-type to be rendered in the user's browser as the extension.
How to fix CVE-2021-41750
To remediate CVE-2021-41750, upgrade the affected package to a fixed version below.
- —upgrade to 3.4.11 or later
Is CVE-2021-41750 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.4.11
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 |