CVE-2021-47907 Rocket LMS 1.1 Persistent Cross-Site Scripting via Support Tickets
Authenticated users can inject malicious scripts via support ticket titles, leading to session hijacking and phishing attacks 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-2021-47907?
CVE-2021-47907 is a medium-severity cross-site scripting vulnerability in Rocketsoft Rocket LMS, published on 10 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Rocket LMS 1.1 contains a persistent cross-site scripting vulnerability in the support ticket module that allows authenticated users to inject malicious script code through the title parameter. Attackers can submit support tickets with embedded HTML/JavaScript payloads that execute in the browsers of other users viewing the message history, enabling session hijacking and phishing attacks.
Weakness: CWE-79
Which versions are affected by CVE-2021-47907?
How do I fix CVE-2021-47907?
No fix has been published for CVE-2021-47907 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-2021-47907 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47907 exists.
Sources
Also known as GHSA-p5cq-w88f-fj6p.