CVE-2021-29267 Cross-site scripting in n/a
Cross-site scripting in SherlockIM allows attackers to target help-desk staff via the chatbot attachment feature.
- 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-2021-29267?
CVE-2021-29267 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Mar 2021. 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
Sherlock SherlockIM through 2021-03-29 allows Cross Site Scripting (XSS) by leveraging the api/Files/Attachment URI to attack help-desk staff via the chatbot feature.
Weakness: CWE-79
Which versions are affected by CVE-2021-29267?
It affects 1 product.
Products include Sherlockim Sherlockim.
How do I fix CVE-2021-29267?
No fix has been published for CVE-2021-29267 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-2021-29267 being exploited?
There is no known exploitation of CVE-2021-29267 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-w2xw-7qr5-2f7j.