Summaryinfo

A vulnerability has been found in Nystudio107 SEOmatic Plugin 3.4.10 on Craft CMS and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /index.php?action=seomatic/file/seo-file-link of the component Base64 Encoded URL Handler. The manipulation leads to cross site scripting. This vulnerability is known as CVE-2021-41750. The attack can be launched remotely. There is no exploit available. It is recommended to apply a patch to fix this issue. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Nystudio107 SEOmatic Plugin 3.4.10 on Craft CMS. Affected is some unknown functionality of the file /index.php?action=seomatic/file/seo-file-link of the component Base64 Encoded URL Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

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.

The weakness was published 06/13/2022 as 4e46b792ce973ac0c652fb330055f41aca1981c8. The advisory is available at github.com. This vulnerability is traded as CVE-2021-41750 since 09/27/2021. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Applying the patch 4e46b792ce973ac0c652fb330055f41aca1981c8 is able to eliminate this problem. The bugfix is ready for download at github.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Nystudio107

Name

• SEOmatic Plugin

Version

• 3.4.10

License

• open-source

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CPE 2.2info

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