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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Sirv Plugin | — | Update sirv plugin to version 7.2.8, or a newer patched version | May 15, 2025 | Aug 21, 2024 |
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