CVE-2026-16583 Orbit Fox by ThemeIsle < 3.0.8 - Author+ Stored XSS via SVG Upload
Authenticated users can upload malicious SVG files to execute JavaScript in the site context, enabling stored cross-site scripting attacks.
- 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-2026-16583?
CVE-2026-16583 is a medium-severity cross-site scripting vulnerability in Unknown Orbit Fox: Duplicate Page, Menu Icons, SVG Support, Cookie Notice, Custom Fonts & More, published on 5 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 Orbit Fox: Duplicate Page, Menu Icons, SVG Support, Cookie Notice, Custom Fonts & More WordPress plugin before 3.0.8 does not sanitize uploaded SVG files when its SVG upload feature is enabled, allowing authenticated users with the upload capability (Author and above by default, without the unfiltered_html capability) to upload SVG files containing JavaScript that executes in the site context when the file is viewed, leading to Stored Cross-Site Scripting.
Weakness: CWE-79
Which versions are affected by CVE-2026-16583?
How do I fix CVE-2026-16583?
No fix has been published for CVE-2026-16583 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-2026-16583 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16583 exists.
Sources
Also known as GHSA-j723-98hh-rm27.