CVE-2017-8802 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the Show Snippet functionality in Zimbra Collaboration Suite.
- 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-2017-8802?
CVE-2017-8802 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Jan 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
Cross-site scripting (XSS) vulnerability in Zimbra Collaboration Suite (aka ZCS) before 8.8.0 Beta2 might allow remote attackers to inject arbitrary web script or HTML via vectors related to the "Show Snippet" functionality.
Weakness: CWE-79
Which versions are affected by CVE-2017-8802?
It affects 1 product.
Products include Synocor Zimbra Collaboration Suite.
How do I fix CVE-2017-8802?
No fix has been published for CVE-2017-8802 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-2017-8802 being exploited?
There is no known exploitation of CVE-2017-8802 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-m9w9-g6vx-mxgc.