CVE-2021-42233 Cross-site scripting in n/a
Stored XSS in Wondercms Simple Blog plugin allows attackers to execute scripts when users view malicious blogs.
- 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-2021-42233?
CVE-2021-42233 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 May 2022. 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 Simple Blog plugin in Wondercms 3.4.1 is vulnerable to stored cross-site scripting (XSS) vulnerability. When any user opens a particular blog hosted on an attackers' site, XSS may occur.
Weakness: CWE-79
Which versions are affected by CVE-2021-42233?
It affects 1 product.
Products include Simple Blog Project Simple Blog.
How do I fix CVE-2021-42233?
No fix has been published for CVE-2021-42233 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-2021-42233 being exploited?
There is no known exploitation of CVE-2021-42233 in the wild and no public exploit code.
Sources
Also known as GHSA-44xf-m62f-7h7r.