Robin Image Optimizer – Unlimited Image Optimization & WebP Converter: Cross-site scripting
Robin Image Optimizer – Unlimited Image Optimization & WebP Converter is affected by cross-site scripting. Exploitation requires at least author-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Robin Image Optimizer – Unlimited Image Optimization & WebP Converter
- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 05, 2026
This CVE was published Feb 05, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Robin Image Optimizer – Unlimited Image Optimization & WebP Converter 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 Robin Image Optimizer – Unlimited Image Optimization & WebP Converter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Alternative Text' field of a Media Library image in all versions up to, and including, 2.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N