CVE-2018-18307 Cross-site scripting in n/a
Stored XSS in AlchemyCMS image field allows attackers to inject scripts, though vendor disputes validity due to required authentication.
- 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-2018-18307?
CVE-2018-18307 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Oct 2018. 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 Stored XSS vulnerability has been discovered in version 4.1.0 of AlchemyCMS via the /admin/pictures image field. NOTE: the vendor's position is that this is not a valid report: "The researcher used an authorized cookie to perform the request to a password-protected route. Without that session cookie, the request would have been rejected as unauthorized."
Weakness: CWE-79
Which versions are affected by CVE-2018-18307?
It affects 1 product.
Products include Alchemy-Cms Alchemy Cms.
How do I fix CVE-2018-18307?
No fix has been published for CVE-2018-18307 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-2018-18307 being exploited?
There is no known exploitation of CVE-2018-18307 in the wild and no public exploit code.