CVE-2024-8480: Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload
First published: Fri Sep 06 2024(Updated: )
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.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Sirv CDN | <7.2.8 |
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Reference Links
- 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/
Frequently Asked Questions
What is the severity of CVE-2024-8480?
CVE-2024-8480 has a moderate severity as it allows unauthorized data modification by authenticated users.
How do I fix CVE-2024-8480?
To fix CVE-2024-8480, update the Sirv plugin for WordPress to version 7.2.8 or later.
Who is affected by CVE-2024-8480?
CVE-2024-8480 affects all versions of the Sirv plugin for WordPress up to and including version 7.2.7.
What functions are related to CVE-2024-8480?
The vulnerability in CVE-2024-8480 is related to the 'sirv_save_prevented_sizes' function.
What type of attacks can exploit CVE-2024-8480?
CVE-2024-8480 can be exploited by authenticated attackers to modify data without proper authorization.
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