CVE-2025-49290 Cross-site scripting in Off-Canvas Sidebars & Menus (Slidebars)
Attackers can execute arbitrary scripts in victim browsers via reflected XSS in the Slidebars WordPress plugin.
- 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-2025-49290?
CVE-2025-49290 is a high-severity cross-site scripting vulnerability in Jory Hogeveen Off-Canvas Sidebars & Menus (Slidebars), published on 27 Jun 2025. 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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jory Hogeveen Off-Canvas Sidebars & Menus (Slidebars) off-canvas-sidebars allows Reflected XSS.This issue affects Off-Canvas Sidebars & Menus (Slidebars): from n/a through <= 0.5.8.4.
Weakness: CWE-79
Which versions are affected by CVE-2025-49290?
How do I fix CVE-2025-49290?
No fix has been published for CVE-2025-49290 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-2025-49290 being exploited?
There is no known exploitation of CVE-2025-49290 in the wild and no public exploit code.
Sources
Also known as GHSA-5g8r-g9fq-mx77.