CVE-2021-43265 Cross-site scripting in n/a
Attackers can inject malicious scripts via tag syntax in Mahara, potentially leading to code execution or account takeover.
- 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-2021-43265?
CVE-2021-43265 is a medium-severity cross-site scripting vulnerability in Mahara Mahara, published on 2 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
In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, certain tag syntax could be used for XSS, such as via a SCRIPT element.
Weakness: CWE-79
Which versions are affected by CVE-2021-43265?
It affects 1 product.
Products include Mahara Mahara.
How do I fix CVE-2021-43265?
No fix has been published for CVE-2021-43265 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-2021-43265 being exploited?
There is no known exploitation of CVE-2021-43265 in the wild and no public exploit code.
Other vulnerabilities in Mahara Mahara
Sources
Also known as GHSA-q4jg-vc8f-32x5.