What is CVE-2021-41750?

CVE-2021-41750 is a medium-severity vulnerability in Nystudio107 Seomatic, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-12.

How severe is CVE-2021-41750?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Nystudio107 Seomatic

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (60.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Nystudio107 Seomatic — versions 3.4.10
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-41750?: CVE-2021-41750 is a medium-severity vulnerability in Nystudio107 Seomatic, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-12.
How severe is CVE-2021-41750?: Medium severity. CVSS v3 base score is 6.1 out of 10.