CVE-2019-14748 Cross-site scripting in n/a
Attackers can upload malicious HTML files to trigger persistent XSS, enabling cookie theft or malicious actions against other users.
- 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-2019-14748?
CVE-2019-14748 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in osTicket before 1.10.7 and 1.12.x before 1.12.1. The Ticket creation form allows users to upload files along with queries. It was found that the file-upload functionality has fewer (or no) mitigations implemented for file content checks; also, the output is not handled properly, causing persistent XSS that leads to cookie stealing or malicious actions. For example, a non-agent user can upload a .html file, and Content-Disposition will be set to inline instead of attachment.
Which versions are affected by CVE-2019-14748?
It affects 1 product.
Products include Enhancesoft Osticket.
How do I fix CVE-2019-14748?
No fix has been published for CVE-2019-14748 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-2019-14748 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-14748 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v3wf-9r8f-h42x.