CVE-2024-13671: Music Sheet Viewer <= 4.1 - Unauthenticated Arbitrary File Read

Severity: high (CVSS 7.5 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: 2025-01-30 · updated 2026-06-17
Weakness: CWE-22

Description

The Music Sheet Viewer plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 4.1 via the read_score_file() function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. CVE-2025-25155 is likely a duplicate of this issue.

Affected products

efreja Music Sheet Viewer: through 4.1

References

https://plugins.trac.wordpress.org/browser/music-sheet-viewer/trunk/music-sheet-viewer.php#L748
https://www.wordfence.com/threat-intel/vulnerabilities/id/569f1cd4-195b-41d4-85cb-f529a1eb18d4?source=cve

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