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GHSA-rpjr-985c-qhvm

CriticalCVSS 9.1 / 10
Published Apr 1, 2026·Last modified Apr 1, 2026
Affected Components(0)

No affected components available

Description

Summary

Vulnerability: Stored DOM XSS via Group / Role Management Fields (Administrative Context Execution)

  • Stored Cross-Site Scripting via Unsanitized Group / Role Management Inputs

Description

The application fails to properly sanitize user-controlled input within group and role management functionality. Multiple input fields (three distinct group-related fields) can be injected with malicious JavaScript payloads, which are then stored server-side.

These stored payloads are later rendered unsafely within privileged administrative views without proper output encoding, leading to stored cross-site scripting (XSS) within the role and permission management context.

Affected Functionality

  • Group creation and editing functionality
  • Role and permission assignment interfaces
  • Storage and retrieval of group-related data

Attack Scenario

  • An attacker injects a malicious XSS payload into one or more group-related input fields.
  • The application stores these values without sanitization or encoding.
  • An administrator views the group or role management interface.
  • The payload executes automatically in the administrator’s browser.

Impact

  • Persistent Stored XSS
  • Execution of arbitrary JavaScript in victims’ browsers
  • Privilege escalation when viewed by administrators
  • Full administrator account takeover
  • Full compromise of the entire application

Endpoints:

  • /backend/users/groupList/

Steps To Reproduce (POC)

  1. Navigate to the Group / Role Management page
  2. Insert an XSS payload into any of the three group-related input fields such as: <img src=x onerror=alert(document.domain)>
  3. Save the group or role changes
  4. View the group/role management page as an administrator
  5. Observe the XSS payload executing automatically

Remediation

  • Never use .html() again or any innerHTML-style like JS in your PHP, or any other sink, even if user inputs that flow into them are not clear, they still represent real world danger as an attacker can make use of this to exploit the application via XSS. And do HTML Encoding as much as possible and always do Sanitization, theres no sanitization there unfortunately. Also apply CSP, HttpOnly, SameSite, and Secure upon all application, they reduce severity of XSS & escalated-CSRF via XSS and do great jobs

Ready Video POC:

https://mega.nz/file/6QUEXDbR#JXzYXg9bef_NeSUVFB4R03UeXLtAVtYwTRsdrHLlokU

Risk Scores
Base Score
9.1

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a low impact on the integrity of the data. There is a low impact on the availability of the system.

Threat Intelligence
8.3

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
0.31%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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