{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.4.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "e5f93d3f5e31172404622c06ebec5b5c9f24143d"
            }
          ],
          "repo": "https://github.com/rocketchat/rocket.chat",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Rocket.Chat through 3.4.2 allows XSS where an attacker can send a specially crafted message to a channel or in a direct message to the client which results in remote code execution on the client side.",
  "id": "CVE-2020-15926",
  "modified": "2026-04-01T23:09:06.799397821Z",
  "published": "2020-08-18T21:15:12.160Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/RocketChat/Rocket.Chat/pull/18356"
    },
    {
      "type": "FIX",
      "url": "https://github.com/RocketChat/Rocket.Chat/commits/develop"
    },
    {
      "type": "EVIDENCE",
      "url": "https://blog.redteam.pl/2020/08/rocket-chat-xss-rce-cve-2020-15926.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}