CVE-2020-22839 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the tab3 parameter in b2evolution CMS, potentially leading to session hijacking or malicious actions.
- 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-2020-22839?
CVE-2020-22839 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Feb 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
Reflected cross-site scripting vulnerability (XSS) in the evoadm.php file in b2evolution cms version 6.11.6-stable allows remote attackers to inject arbitrary webscript or HTML code via the tab3 parameter.
Weakness: CWE-79
Which versions are affected by CVE-2020-22839?
It affects 1 product.
Products include B2evolution B2evolution Cms.
How do I fix CVE-2020-22839?
No fix has been published for CVE-2020-22839 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-2020-22839 being exploited?
There is no known exploitation of CVE-2020-22839 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8q43-j9qm-qm7q.