Image Optimizer, Resizer and CDN – Sirv: A security weakness
Image Optimizer, Resizer and CDN – Sirv is affected by a security weakness. Exploitation requires at least contributor-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- Image Optimizer, Resizer and CDN – Sirv
- Plugin slug
sirv- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 20, 2024
This CVE was published Nov 20, 2024 and is one of 11 known issues for this plugin.
Update, patch or deactivate.
Update Image Optimizer, Resizer and CDN – Sirv to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to insufficient validation on the filename parameter of the sirv_upload_file_by_chunks() function and lack of in all versions up to, and including, 7.3.0. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary option values on the WordPress site. This can be leveraged to delete an option that would create an error on the site and deny service to legitimate users.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H