CVE-2021-27564 Cross-site scripting in n/a
Authenticated attackers can inject stored XSS payloads into group names, executing scripts in other users' browsers.
- 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-2021-27564?
CVE-2021-27564 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Feb 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A stored XSS issue exists in Appspace 6.2.4. After a user is authenticated and enters an XSS payload under the groups section of the network tab, it is stored as the group name. Whenever another member visits that group, this payload executes.
Weakness: CWE-79
Which versions are affected by CVE-2021-27564?
It affects 1 product.
Products include Appspace Appspace.
How do I fix CVE-2021-27564?
No fix has been published for CVE-2021-27564 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-2021-27564 being exploited?
There is no known exploitation of CVE-2021-27564 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9pcq-r26w-9482.