CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The OpenSheetMusicDisplay plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘className’ parameter in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
OpenSheetMusicDisplay versions up to 1.4.0 contain a cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Users should update to version 1.4.2 or later to remediate this issue.
What an attacker can do
Inject malicious scripts that execute in other users' browsers and affect the application's functionality.
Potential impact on your site
Authenticated users could be compromised through script injection, potentially leading to session hijacking or data theft.
Conditions required to exploit
Attacker must be authenticated with low-level privileges and have network access to the application.
Key dates
External resources
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