Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload
Vulnerability Description
The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-8480
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Nicola Scattaglia
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1e3e628f-b5e7-40fd-9d34-4a3b23e1e0e7?source=cve
- https://plugins.trac.wordpress.org/browser/sirv/trunk/sirv.php?rev=3103410#L4647
- https://plugins.trac.wordpress.org/browser/sirv/tags/7.2.7/sirv.php#L6331
- https://plugins.trac.wordpress.org/changeset/3115018/
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