CVE-2020-23517 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the user field in the login form of HighMail CMS.
- 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-2020-23517?
CVE-2020-23517 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 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
Cross Site Scripting (XSS) vulnerability in Aryanic HighMail (High CMS) versions 2020 and before allows remote attackers to inject arbitrary web script or HTML, via 'user' to LoginForm.
Weakness: CWE-79
Which versions are affected by CVE-2020-23517?
It affects 1 product.
Products include Aryanic High Cms.
How do I fix CVE-2020-23517?
No fix has been published for CVE-2020-23517 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-2020-23517 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-23517 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-9vj6-xrwf-2fp9.