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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2022-30935

An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2022-30935
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 16:19 UTC · Revision 1

Source evidence

CVE-2022-30935

core-osv · Original source

Published 28 Sept 2022, 10:24 UTC

An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.

osv:CVE-2022-30935
Complete source record
{
  "id": "f1cac9eb6d691861fb03da707c73a0ca9e5d3173dac4deb8a6801a1c6b0054ab",
  "url": "https://osv.dev/vulnerability/CVE-2022-30935",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-30935",
    "summary": "An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.",
    "evidence": "osv:CVE-2022-30935",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2022-30935",
      "aliases": [
        "CVE-2022-30935"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/b2evolution/b2evolution",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a7920fa31b433793ff59c14f70e6f01f613f595f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:b2evolution:b2evolution:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "7.2.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.2.3",
            "7.2.2",
            "7.1.7",
            "7.1.5",
            "6.11.6",
            "6.11.5",
            "6.11.4",
            "6.10.8",
            "6.10.7",
            "6.10.6",
            "6.10.5",
            "6.10.4",
            "6.10.3",
            "6.10.2",
            "6.9.7",
            "6-9-5",
            "6-9-4",
            "6.9.5",
            "6.9.4",
            "6.9.3",
            "6.8.10",
            "6.8.9",
            "6.8.8",
            "6.8.7",
            "6.8.6",
            "6.8.5",
            "6.8.4",
            "6.8.3",
            "6.7.7",
            "6.7.6",
            "6.7.5",
            "6.6.8",
            "6.6.7",
            "6.6.6",
            "6.6.5",
            "6.6.4",
            "6.6.1",
            "6.6.0",
            "6.5.0",
            "6.4.4-beta",
            "6.4.3-beta",
            "6.4.2-beta",
            "6.1.2-alpha",
            "6.0.0-alpha.1",
            "6.0.0-alpha",
            "v5.2.0-stable"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-30935.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.616393650Z",
      "provider": "osv",
      "references": [
        "https://b2evolution.net/downloads/7-2-5-stable",
        "https://github.com/b2evolution/b2evolution/blob/master/inc/_core/_misc.funcs.php#L5955",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/30xxx/CVE-2022-30935.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-30935",
        "https://github.com/b2evolution/b2evolution/issues/114"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/30xxx/CVE-2022-30935.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-30935",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504614,
  "published_at": "2022-09-28T10:24:56+00:00"
}