CVE-2026-55186

{
  "id": "CVE-2026-55186",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-03T21:17:38.653",
  "lastModified": "2026-11-03T23:17:48.440",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Silverstripe MFA provides multi-factor authentication for Silverstripe CMS. Prior to 6.0.0, the CMS 5 password reset flow can issue a logged-in session after a user changes a password but before the user's configured multi-factor authentication challenge is completed. An attacker with access to the user's email account can follow the reset flow and bypass the additional authentication factor. CMS 6 is not affected. This issue is fixed in version 6.0.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "silverstripe",
          "product": "silverstripe-mfa",
          "versions": [
            {
              "version": "< 6.0.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-03T22:36:13.686987Z",
          "id": "CVE-2026-55186",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-288"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/silverstripe/silverstripe-framework/commit/4b5cbd7ddf68721d8119583f0b9c04d4b4adc704",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/silverstripe/silverstripe-framework/pull/11686",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/silverstripe/silverstripe-mfa/commit/04a102b662ac2f555acc26f8d2e2d8dab3937a6a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/silverstripe/silverstripe-mfa/pull/603",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/silverstripe/silverstripe-mfa/releases/tag/6.0.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/silverstripe/silverstripe-mfa/security/advisories/GHSA-68wq-phq7-p2vg",
      "source": "[email protected]"
    },
    {
      "url": "https://www.silverstripe.org/download/security-releases/cve-2026-55186",
      "source": "[email protected]"
    }
  ]
}