CVE-2025-54407
Stored XSS in GroupSession Versions Before 5.3.x Enables Script Execution
Publication date: 2025-12-12
Last updated on: 2026-02-17
Assigner: JPCERT/CC
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| groupsession | groupsession | to 5.3.3 (exc) |
| groupsession | groupsession | to 5.3.0 (exc) |
| groupsession | groupsession | to 5.3.2 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
Users are advised to update GroupSession to the latest versions provided by the vendor to mitigate this vulnerability. [2]
Can you explain this vulnerability to me?
This vulnerability is a stored cross-site scripting (XSS) issue in GroupSession products before certain versions. It allows an attacker to inject malicious scripts that are stored on the server and executed in the web browser of any user who accesses a crafted page or URL.
How can this vulnerability impact me? :
The vulnerability can lead to arbitrary script execution in users' browsers, potentially allowing attackers to steal sensitive information, hijack user sessions, or perform actions on behalf of the user without their consent.