CVE-2018-20524 Cross-site scripting in n/a
Cross-site scripting in Chat Anywhere Chrome extension allows attackers to execute arbitrary scripts via crafted messages bypassing CSP.
- 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-2018-20524?
CVE-2018-20524 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Dec 2018. 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 Chat Anywhere extension 2.4.0 for Chrome allows XSS via crafted use of <<a> in a message, because a danmuWrapper DIV element in chatbox-only\danmu.js is outside the scope of a Content Security Policy (CSP).
Weakness: CWE-79
Which versions are affected by CVE-2018-20524?
It affects 1 product.
Products include Urlchatbox Chat Anywhere.
How do I fix CVE-2018-20524?
No fix has been published for CVE-2018-20524 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-2018-20524 being exploited?
There is no known exploitation of CVE-2018-20524 in the wild and no public exploit code.
Sources
Also known as GHSA-wqqx-5mmq-6phc.