CVE-2021-27559 Cross-site scripting in n/a
Attackers can inject malicious scripts via the Nickname field on the Contact page, potentially stealing user sessions or executing code.
- 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-2021-27559?
CVE-2021-27559 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
The Contact page in Monica 2.19.1 allows stored XSS via the Nickname field.
Weakness: CWE-79
Which versions are affected by CVE-2021-27559?
It affects 1 product.
Products include Monicahq Monica.
How do I fix CVE-2021-27559?
No fix has been published for CVE-2021-27559 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-2021-27559 being exploited?
There is no known exploitation of CVE-2021-27559 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-2mm4-8fvv-52q9.