CVE-2021-31739 Cross-site scripting in n/a
An attacker can inject malicious scripts via recipient addresses in SEPPmail, potentially leading to session hijacking or code execution.
- 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-2021-31739?
CVE-2021-31739 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 Nov 2022. 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 SEPPmail solution is vulnerable to a Cross-Site Scripting vulnerability (XSS), because user input is not correctly encoded in HTML attributes when returned by the server.SEPPmail 11.1.10 allows XSS via a recipient address.
Weakness: CWE-79
Which versions are affected by CVE-2021-31739?
It affects 1 product.
Products include Seppmail Seppmail.
How do I fix CVE-2021-31739?
No fix has been published for CVE-2021-31739 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-2021-31739 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-31739 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5q2f-65mc-6jvf.