CVE-2020-21643 Cross-site scripting in n/a
Attackers can execute arbitrary code via XSS in HongCMS by exploiting the callback parameter in the myshop AJAX endpoint.
- 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-2020-21643?
CVE-2020-21643 is a medium-severity cross-site scripting vulnerability in n/a, published on 28 Apr 2023. 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 HongCMS 3.0 allows attackers to run arbitrary code via the callback parameter to /ajax/myshop.
Weakness: CWE-79
Which versions are affected by CVE-2020-21643?
It affects 1 product.
Products include Hongcms Project Hongcms.
How do I fix CVE-2020-21643?
No fix has been published for CVE-2020-21643 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-2020-21643 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-21643 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rgcf-fv23-mh6f.