CVE-2021-42664 Cross-site scripting in n/a
Attackers can inject malicious scripts via quiz fields in Engineers Online Portal, potentially stealing user cookies and session data.
- 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-2021-42664?
CVE-2021-42664 is a medium-severity cross-site scripting vulnerability in n/a, published on 5 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A Stored Cross Site Scripting (XSS) Vulneraibiilty exists in Sourcecodester Engineers Online Portal in PHP via the (1) Quiz title and (2) quiz description parameters to add_quiz.php. An attacker can leverage this vulnerability in order to run javascript commands on the web server surfers behalf, which can lead to cookie stealing and more.
Weakness: CWE-79
Which versions are affected by CVE-2021-42664?
It affects 1 product.
Products include Engineers Online Portal Project Engineers Online Portal.
How do I fix CVE-2021-42664?
No fix has been published for CVE-2021-42664 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-2021-42664 being exploited?
There is no known exploitation of CVE-2021-42664 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-fmwm-fpxf-fvm8.