CVE-2021-21434 XSS in Survey Module
A survey administrator can inject malicious code into surveys, leading to script execution in the agent interface for other users.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-21434?
CVE-2021-21434 is a low-severity cross-site scripting vulnerability in OTRS AG Survey, published on 8 Feb 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Survey administrator can craft a survey in such way that malicious code can be executed in the agent interface (i.e. another agent who wants to make changes in the survey). This issue affects: OTRS AG Survey 6.0.x version 6.0.20 and prior versions; 7.0.x version 7.0.19 and prior versions.
Weakness: CWE-79
Which versions are affected by CVE-2021-21434?
It affects 1 product.
Products include Otrs Survey.
How do I fix CVE-2021-21434?
No fix has been published for CVE-2021-21434 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-2021-21434 being exploited?
There is no known exploitation of CVE-2021-21434 in the wild and no public exploit code.
Other vulnerabilities in OTRS AG Survey
Sources
Also known as GHSA-2rff-cr3q-94jm, UBUNTU-CVE-2021-21434.