CVE-2026-5226 Optimole <= 4.2.3 - Reflected Cross-Site Scripting via Page Profiler URL
Unauthenticated attackers can inject arbitrary web scripts via URL paths in the Optimole WordPress plugin, executing code in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-5226?
CVE-2026-5226 is a medium-severity cross-site scripting vulnerability in Optimole – Optimize Images in Real Time, published on 11 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Optimole – Optimize Images in Real Time plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL paths in versions up to, and including, 4.2.3 This is due to insufficient output escaping on user-supplied URL paths in the get_current_url() function, which are inserted into JavaScript code via str_replace() without proper JavaScript context escaping in the replace_content() function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Weakness: CWE-79
Which versions are affected by CVE-2026-5226?
How do I fix CVE-2026-5226?
No fix has been published for CVE-2026-5226 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-5226 being exploited?
There is no known exploitation of CVE-2026-5226 in the wild and no public exploit code.
Sources
Also known as GHSA-c2rf-g3vq-gg84.