{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "2021-06-03"
              },
              {
                "fixed": "2022-03-01"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e090027adcbf62737d5b1f83a9618a9500a49321"
            }
          ],
          "repo": "https://github.com/zulip/zulip",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e090027adcbf62737d5b1f83a9618a9500a49321"
            }
          ],
          "repo": "https://github.com/zulip/zulip",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-fc77-h3jc-6mfv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23656.json"
  },
  "details": "Zulip is an open source team chat app. The `main` development branch of Zulip Server from June 2021 and later is vulnerable to a cross-site scripting vulnerability on the recent topics page. An attacker could maliciously craft a full name for their account and send messages to a topic with several participants; a victim who then opens an overflow tooltip including this full name on the recent topics page could trigger execution of JavaScript code controlled by the attacker. Users running a Zulip server from the main branch should upgrade from main (2022-03-01 or later) again to deploy this fix.",
  "id": "CVE-2022-23656",
  "modified": "2026-04-01T23:10:31.406400538Z",
  "published": "2022-03-02T20:25:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23656.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/zulip/zulip/security/advisories/GHSA-fc77-h3jc-6mfv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23656"
    },
    {
      "type": "FIX",
      "url": "https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross-site scripting vulnerability in Zulip Server"
}