CVE-2019-19903 Cross-site scripting in n/a
An attacker with file type administration permissions can inject scripts into file type descriptions, leading to XSS when administrators view the list.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-19903?
CVE-2019-19903 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
An issue was discovered in Backdrop CMS 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying file type descriptions created by administrators. An attacker could potentially craft a specialized description, then have an administrator execute scripting when viewing the list of file types, aka XSS. This vulnerability is mitigated by the fact that an attacker must have a role with the "Administer file types" permission.
Weakness: CWE-79
Which versions are affected by CVE-2019-19903?
It affects 1 product.
Products include Backdropcms Backdrop Cms.
How do I fix CVE-2019-19903?
No fix has been published for CVE-2019-19903 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-2019-19903 being exploited?
There is no known exploitation of CVE-2019-19903 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-pjx6-j435-vcmj.