CVE-2025-5235

MEDIUM 5.4CVE-2025-5235 · Published 30/05/2025 · updated 17/06/2026

In short

CVE-2025-5235 is a MEDIUM (CVSS 5.4) vulnerability affecting opensheetmusicdisplay (opensheetmusicdisplay).
Chance of exploitation in the next 30 days (EPSS): 0.32%, higher than 25.0% of all vulnerabilities.
Fix: update to 1.4.1 or later.

Package	Affected versions	Patched versions
opensheetmusicdisplay opensheetmusicdisplay	`< 1.4.1`	`1.4.1`

Description

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.

References

opensheetmusicdisplay/opensheetmusicdisplay · Release Notes
plugins.trac.wordpress.org/browser/opensheetmusicdisplay/trunk/opensheetmusicdisplay.php · Product
plugins.trac.wordpress.org/changeset/3301757 · Patch
plugins.trac.wordpress.org/changeset/3301757 · Product
wordpress.org/plugins/opensheetmusicdisplay · Release Notes
wordfence.com/threat-intel/vulnerabilities/id/a45417ce-d5dd-4706-adbb-d44670de6eb7 · Third Party Advisory

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