CVE-2017-6909 Cross-site scripting in n/a
Attackers can inject arbitrary HTML and script code into the chatbox history, potentially compromising user sessions in Shimmie.
- 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-2017-6909?
CVE-2017-6909 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Mar 2017. 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
An issue was discovered in Shimmie <= 2.5.1. The vulnerability exists due to insufficient filtration of user-supplied data (log) passed to the "shimmie2-master/ext/chatbox/history/index.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
Weakness: CWE-79
Which versions are affected by CVE-2017-6909?
It affects 1 product.
Products include Shishnet Shimmie.
How do I fix CVE-2017-6909?
No fix has been published for CVE-2017-6909 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-2017-6909 being exploited?
There is no known exploitation of CVE-2017-6909 in the wild and no public exploit code.
Sources
Also known as GHSA-r5w4-qmwq-mhpr.