Unauthenticated file read via path traversal
Published Jan 30, 2025 · Updated Apr 8, 2026
Path traversal in efreja Music Sheet Viewer 4.1 and earlier allows remote attackers to read arbitrary server files without authentication. The read_score_file() function uses an attacker-controlled pathname without restricting traversal outside the intended score-file directory. No account or user interaction is required, and exposure is limited to file contents readable by the WordPress/PHP process.
Summary
What happened
Path traversal in efreja Music Sheet Viewer 4.1 and earlier allows remote attackers to read arbitrary server files without authentication. The read_score_file() function uses an attacker-controlled pathname without restricting traversal outside the intended score-file directory. No account or user interaction is required, and exposure is limited to file contents readable by the WordPress/PHP process.
The record
- CVE
- CVE-2024-13671
- Published
- Jan 30, 2025
- Updated
- Apr 8, 2026
- Vendor
- efreja
- Product
- Music Sheet Viewer
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 30, 2025CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=4.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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