CVE-2026-66456 WordPress Profile Extra Fields by BestWebSoft plugin <= 1.3.4 - Cross Site Scripting (XSS) vulnerability
A subscriber can inject malicious scripts via the Profile Extra Fields plugin, potentially leading to session hijacking or site compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-66456?
CVE-2026-66456 is a medium-severity cross-site scripting vulnerability in Profile Extra Fields by BestWebSoft, published on 13 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Subscriber Cross Site Scripting (XSS) in Profile Extra Fields by BestWebSoft <= 1.3.4 versions.
Weakness: CWE-79
Which versions are affected by CVE-2026-66456?
How do I fix CVE-2026-66456?
No fix has been published for CVE-2026-66456 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-2026-66456 being exploited?
There is no known exploitation of CVE-2026-66456 in the wild and no public exploit code.
Sources
Also known as GHSA-48q7-w7r3-3jjg.