CVE-2021-40541 Cross-site scripting in n/a
An authenticated user can trigger cross-site scripting in PHPFusion by appending double slashes to text, potentially leading to session hijacking or malicious script execution.
- 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-2021-40541?
CVE-2021-40541 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Oct 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
PHPFusion 9.03.110 is affected by cross-site scripting (XSS) in the preg patterns filter html tag without "//" in descript() function An authenticated user can trigger XSS by appending "//" in the end of text.
Weakness: CWE-79
Which versions are affected by CVE-2021-40541?
It affects 1 product.
Products include Php-Fusion Phpfusion.
How do I fix CVE-2021-40541?
No fix has been published for CVE-2021-40541 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-2021-40541 being exploited?
There is no known exploitation of CVE-2021-40541 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gr69-fgwp-qxq8.