CVE-2021-40492 Cross-site scripting in n/a
Reflected XSS in Gibbon allows attackers to execute arbitrary JavaScript via crafted parameters, potentially compromising user sessions.
- 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-2021-40492?
CVE-2021-40492 is a medium-severity cross-site scripting vulnerability in n/a, published on 3 Sep 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
A reflected XSS vulnerability exists in multiple pages in version 22 of the Gibbon application that allows for arbitrary execution of JavaScript (gibbonCourseClassID, gibbonPersonID, subpage, currentDate, or allStudents to index.php).
Weakness: CWE-79
Which versions are affected by CVE-2021-40492?
It affects 1 product.
Products include Gibbonedu Gibbon.
How do I fix CVE-2021-40492?
No fix has been published for CVE-2021-40492 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-2021-40492 being exploited?
There is no known exploitation of CVE-2021-40492 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qxgj-gjcq-4732.