CVE-2025-23642 WordPress Sidebar-Content from Shortcode plugin <= 2.0 - Cross Site Scripting (XSS) vulnerability
An attacker can execute arbitrary scripts in the context of other users' browsers via DOM-based XSS in the Sidebar-Content from Shortcode plugin.
- 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-2025-23642?
CVE-2025-23642 is a medium-severity cross-site scripting vulnerability in pflonk Sidebar-Content from Shortcode, published on 16 Jan 2025. 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 pflonk Sidebar-Content from Shortcode sidebar-content-from-shortcode allows DOM-Based XSS.This issue affects Sidebar-Content from Shortcode: from n/a through <= 2.0.
Weakness: CWE-79
Which versions are affected by CVE-2025-23642?
How do I fix CVE-2025-23642?
No fix has been published for CVE-2025-23642 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-2025-23642 being exploited?
There is no known exploitation of CVE-2025-23642 in the wild and no public exploit code.
Sources
Also known as GHSA-vrcq-rcq5-v39m.