What’s Vulnerable › Vulnerabilities

CVE-2021-36849: WordPress Social Media Share Buttons plugin <= 3.8.1 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-07-20 · updated 2026-06-17
• Weakness: CWE-79

Description

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in René Hermenau's Social Media Share Buttons plugin <= 3.8.1 at WordPress.

Affected products

• René Hermenau Social Media Share Buttons | MashShare (WordPress plugin): through 3.8.1

References

• https://patchstack.com/database/vulnerability/mashsharer/wordpress-social-media-share-buttons-plugin-3-8-1-authenticated-stored-cross-site-scripting-xss-vulnerability
• https://wordpress.org/plugins/mashsharer/#developers
• https://patchstack.com/database/vulnerability/mashsharer/wordpress-social-media-share-buttons-plugin-3-8-1-authenticated-stored-cross-site-scripting-xss-vulnerability
• https://wordpress.org/plugins/mashsharer/#developers

Get alerted when CVE-2021-36849 or the next vulnerability affects your stack