CVE-2021-47907
Rocket LMS 1.1 Persistent Cross-Site Scripting via Support Tickets
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.
INFO
Published Date :
May 10, 2026, 1:16 p.m.
Last Modified :
July 25, 2026, 11:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Rocket LMS to a patched version.
- Validate and sanitize the 'title' parameter.
- Implement output encoding for displayed ticket titles.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47907.
| URL | Resource |
|---|---|
| https://lms.rocket-soft.org/ | |
| https://www.exploit-db.com/exploits/50677 | |
| https://www.vulncheck.com/advisories/rocket-lms-persistent-cross-site-scripting-via-support-tickets |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47907 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47907
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47907 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47907 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 25, 2026
Action Type Old Value New Value Added Translation Title: Rocket LMS de Rocketsoft, Description: Rocket LMS 1.1 contiene una vulnerabilidad de cross-site scripting persistente en el módulo de tickets de soporte que permite a usuarios autenticados inyectar código de script malicioso a través del parámetro de título. Los atacantes pueden enviar tickets de soporte con cargas útiles HTML/JavaScript incrustadas que se ejecutan en los navegadores de otros usuarios que ven el historial de mensajes, lo que permite el secuestro de sesión y ataques de phishing. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Rocketsoft', 'product': 'Rocket LMS', 'versions': [{'status': 'affected', 'version': '1.1'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2021-47907', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-11T16:16:50.637462Z'} -
New CVE Received by [email protected]
May. 10, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://lms.rocket-soft.org/ Added Reference https://www.exploit-db.com/exploits/50677 Added Reference https://www.vulncheck.com/advisories/rocket-lms-persistent-cross-site-scripting-via-support-tickets