Vulnerability Details CVE-2021-41750
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 63.7%
CVSS Severity
CVSS v3 Score 6.1
CVSS v2 Score 4.3
References
- https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md
- https://github.com/nystudio107/craft-seomatic/commit/4e46b792ce973ac0c652fb330055f41aca1981c8
- https://github.com/nystudio107/craft-seomatic/commit/5f2cdc7c39e0a4bfb60d2f84131508f0a87b2873
- https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md
- https://github.com/nystudio107/craft-seomatic/commit/4e46b792ce973ac0c652fb330055f41aca1981c8
- https://github.com/nystudio107/craft-seomatic/commit/5f2cdc7c39e0a4bfb60d2f84131508f0a87b2873
Products affected by CVE-2021-41750
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cpe:2.3:a:nystudio107:seomatic:3.4.10