CVE-2020-10099 Cross-site scripting in n/a
A low-privileged user can inject malicious JavaScript via tickets, executing code in other users' browsers to potentially hijack 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-2020-10099?
CVE-2020-10099 is a medium-severity cross-site scripting vulnerability in Zammad Zammad, published on 5 Mar 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
An XSS issue was discovered in Zammad 3.0 through 3.2. Malicious code can be provided by a low-privileged user through the Ticket functionality in Zammad. The malicious JavaScript will execute within the browser of any user who opens the ticket or has the ticket within the Toolbar.
Weakness: CWE-79
Which versions are affected by CVE-2020-10099?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2020-10099?
No fix has been published for CVE-2020-10099 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-2020-10099 being exploited?
There is no known exploitation of CVE-2020-10099 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-9789-x2qq-rrpj.