CVE-2023-37658 Cross-site scripting in n/a
An attacker can inject malicious scripts via file uploads in fast-poster, leading to stored XSS and potential session hijacking or data theft.
- 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-2023-37658?
CVE-2023-37658 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Jul 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
fast-poster v2.15.0 is vulnerable to Cross Site Scripting (XSS). File upload check binary of img, but without strictly check file suffix at /server/fast.py -> ApiUploadHandler.post causes stored XSS
Weakness: CWE-79
Which versions are affected by CVE-2023-37658?
It affects 1 product.
Products include Fastposter Fast-Poster.
How do I fix CVE-2023-37658?
No fix has been published for CVE-2023-37658 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-2023-37658 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37658 exists.
Sources
Also known as GHSA-28m2-fhxm-fxx6.