CVE-2021-36849 LOW

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

Vendor René Hermenau
Product Social Media Share Buttons | MashShare (WordPress plugin)
Weakness CWE-79 · XSS
Published July 20, 2022
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

3.4/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

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

Explanation of Vulnerability in Simple Terms

02Summary

The MashShare WordPress plugin through version 3.8.1 contains a stored cross-site scripting (XSS) vulnerability in its social media sharing functionality. An authenticated administrator with high privileges can inject malicious JavaScript that executes in the browsers of site visitors. The vulnerability requires user interaction and affects the integrity of the site's frontend content.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers when they view affected pages.

Potential impact on your site

04Site Impact

Visitors' browsers can be compromised to steal data, redirect traffic, or deface content displayed on your site.

Conditions required to exploit

05Prerequisites

Attacker must be logged in as an administrator and trick a user into visiting a crafted link or page.

Key dates

06Disclosure timeline

July 20, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

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