CVE-2023-29887
Published: 18 April 2023
Summary
CVE-2023-29887 is a high-severity Path Traversal (CWE-22) vulnerability in Nuovo Spreadsheet-Reader. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 1.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-29887 is a path traversal vulnerability (CWE-22) in the test.php file of the PHP library spreadsheet-reader version 0.5.11. The flaw permits inclusion of arbitrary files through an unsanitized File parameter, resulting in a CVSS 3.1 score of 7.5 with network attack vector, low complexity, and no required authentication or user interaction.
Remote, unauthenticated attackers can exploit the issue over the network to read arbitrary files on the server, achieving high-impact disclosure of sensitive data while leaving integrity and availability unaffected.
The EPSS score for this CVE rose from a low baseline after the April 2023 disclosure to a peak of 0.8864 on 2025-12-11 before receding to the current value of 0.6233, indicating that exploitation interest increased well after public release and that the vulnerability merits renewed attention.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-33424
Vulnerability details
A Local File inclusion vulnerability in test.php in spreadsheet-reader 0.5.11 allows remote attackers to include arbitrary files via the File parameter.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates pathnames and filenames to prevent traversal outside intended directories.