CVE-2026-82646 WWBN AVideo Unauthenticated Reflected XSS via url2Embed.json.php
Attackers can execute arbitrary JavaScript in victims' sessions via a crafted link, potentially stealing cookies and CSRF tokens.
- 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-2026-82646?
CVE-2026-82646 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 30 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
WWBN AVideo contains an unauthenticated reflected cross-site scripting vulnerability in the url2Embed.json.php endpoint that allows attackers to inject malicious scripts by supplying URLs with HTML metacharacters. Attackers can mint an encrypted evideo payload containing unescaped markup, then deliver it as a legitimate-looking link on the site's own domain to execute JavaScript in victims' sessions and steal cookies or CSRF tokens.
Weakness: CWE-79
Which versions are affected by CVE-2026-82646?
How do I fix CVE-2026-82646?
No fix has been published for CVE-2026-82646 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-2026-82646 being exploited?
There is no known exploitation of CVE-2026-82646 in the wild and no public exploit code.
Sources
Also known as GHSA-ffr7-g8h5-97cp.