Security advisory

{
  "id": "a51ab6191a47bf653ee8d39b967e5354548725952f94248a52b2d46df288b4a3",
  "url": "https://osv.dev/vulnerability/CVE-2021-46900",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-46900",
    "summary": "Sympa before 6.2.62 relies on a cookie parameter for certain security objectives, but does not ensure that this parameter exists and has an unpredictable value. Specifically, the cookie parameter is both a salt for stored passwords and an XSS protection mechanism.",
    "evidence": "osv:CVE-2021-46900",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-46900",
      "aliases": [
        "CVE-2021-46900"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sympa-community/sympa",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "39e3006ad6c948dba9e8322f9d5a5823ff2d727b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sympa:sympa:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "6.2.62"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "6.2.26",
            "6.2.38",
            "6.2.34",
            "6.2.49b.1",
            "6.2.58",
            "6.2.16",
            "6.2.35b.1",
            "6.2.60",
            "6.2.54",
            "6.2.44",
            "6.2.48",
            "6.2.40",
            "6.2.25b.3",
            "6.2.42",
            "6.2.57b.1",
            "6.2.61b.1",
            "6.2.61b.2",
            "6.2.59b.1",
            "6.2.59b.2",
            "6.2.22",
            "6.2.56",
            "6.2.57b.2",
            "6.2.52",
            "6.2.49b.3",
            "6.2.50",
            "6.2.49b.2",
            "6.2.46",
            "6.2.45b.3",
            "6.2.45b.2",
            "6.2.45b.1",
            "6.2.43b.2",
            "6.2.43b.1",
            "6.2.41b.2",
            "6.2.41b.1",
            "6.2.37b.3",
            "6.2.37b.2",
            "6.2.36",
            "6.2.37b.1",
            "6.2.33b.2",
            "6.2.32",
            "6.2.33b.1",
            "6.2.30",
            "6.2.28",
            "6.2.25b.2",
            "6.2.25b.1",
            "6.2.24",
            "6.2.23b.3",
            "6.2.23b.2",
            "6.2.23b.1",
            "6.2.20",
            "6.2.19b.2",
            "6.2.19b.1",
            "6.2.18",
            "6.2.17b.2",
            "6.2.17b.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46900.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:11.363400720Z",
      "provider": "osv",
      "references": [
        "https://github.com/sympa-community/sympa-community.github.io/blob/master/security/2021-001.md",
        "https://www.sympa.community/security/2021-001.html",
        "https://github.com/sympa-community/sympa/issues/1091"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-46900",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387037,
  "published_at": "2023-12-31T05:15:08.04+00:00"
}