CVE-2026-19056 ProSolution WP Client < 2.0.11 - Reflected XSS via 'page' Parameter
Reflected XSS in ProSolution WP Client allows attackers to execute scripts in an administrator's session via a crafted request.
- 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-2026-19056?
CVE-2026-19056 is a high-severity cross-site scripting vulnerability in Unknown ProSolution WP Client, published on 19 Aug 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 ProSolution WP Client WordPress plugin before 2.0.11 does not sanitise and escape a parameter before reflecting it into an HTML attribute on one of its administrative pages, leading to reflected Cross-Site Scripting that runs in the session of an administrator induced to submit a crafted request.
Weakness: CWE-79
Which versions are affected by CVE-2026-19056?
How do I fix CVE-2026-19056?
No fix has been published for CVE-2026-19056 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-2026-19056 being exploited?
There is no known exploitation of CVE-2026-19056 in the wild and no public exploit code.
Sources
Also known as GHSA-c4f2-w392-72qv.