CVE-2026-39708 WordPress UiCore Elements plugin <= 1.3.17 - Cross Site Scripting (XSS) vulnerability
Attackers can inject malicious scripts into web pages via the UiCore Elements plugin, potentially compromising user sessions.
- 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-2026-39708?
CVE-2026-39708 is a medium-severity cross-site scripting vulnerability in UiCore Elements, published on 8 Apr 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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UiCore UiCore Elements uicore-elements allows Stored XSS.This issue affects UiCore Elements: from n/a through 1.3.17.
Weakness: CWE-79
Which versions are affected by CVE-2026-39708?
How do I fix CVE-2026-39708?
No fix has been published for CVE-2026-39708 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-2026-39708 being exploited?
There is no known exploitation of CVE-2026-39708 in the wild and no public exploit code.
Sources
Also known as GHSA-v5fx-2c92-mwpw.