CVE-2018-15903 Cross-site scripting in n/a
An authenticated attacker can inject malicious JavaScript into the Discuss module to steal session cookies and hijack high-privilege accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-15903?
CVE-2018-15903 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 Oct 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Discuss v1.2.1 module in Claromentis 8.2.2 is vulnerable to stored Cross Site Scripting (XSS). An authenticated attacker will be able to place malicious JavaScript in the discussion forum, which is present in the login landing page. A low privilege user can use this to steal the session cookies from high privilege accounts and hijack these, enabling them to hijack the elevated session and perform actions in their security context.
Weakness: CWE-79
Which versions are affected by CVE-2018-15903?
It affects 1 product.
Products include Claromentis Claromentis.
How do I fix CVE-2018-15903?
No fix has been published for CVE-2018-15903 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-2018-15903 being exploited?
There is no known exploitation of CVE-2018-15903 in the wild and no public exploit code.
Sources
Also known as GHSA-ww8r-p528-8gcq.