CVE-2024-8480
Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | sirv |
| Product | image optimizer, resizer and cdn – sirv |
| Published | Sep 6, 2024 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
sirv / Image Optimizer, Resizer and CDN – Sirv
0 ≤ 7.2.7
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/1e3e628f-b5e7-40fd-9d34-4a3b23e1e0e7?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/sirv/trunk/sirv.php?rev=3103410#L4647 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/sirv/tags/7.2.7/sirv.php#L6331 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3115018/
Credits
Nicola Scattaglia