CVE-2024-36109 Cross-site Scripting with Markdown rendering in CoCalc
Attackers can inject malicious scripts via markdown rendering in CoCalc, potentially executing code or stealing user sessions.
- 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-2024-36109?
CVE-2024-36109 is a high-severity cross-site scripting vulnerability in sagemathinc cocalc, published on 28 May 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. In affected versions the markdown parser allows `<script>` tags to be included which execute when published. This issue has been addressed in commit `419862a9c9879c`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-79
Which versions are affected by CVE-2024-36109?
How do I fix CVE-2024-36109?
No fix has been published for CVE-2024-36109 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-2024-36109 being exploited?
There is no known exploitation of CVE-2024-36109 in the wild and no public exploit code.
Sources
Also known as GHSA-8w44-hggw-p5rf.