FKIE_CVE-2026-54588

Vulnerability from fkie_nvd - Published: 2026-06-23 23:16 - Updated: 2026-06-25 20:18
Severity
9.6 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
Summary
Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled `HTTP_HOST` request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An unauthenticated attacker can poison the `redirect_uri` sent to the Identity Provider, causing the IdP to redirect the victim's authorization code to an attacker-controlled server - resulting in full account takeover with no credentials required. Versions 4.2.4 and 4.3.3 patch the issue.
References
security-advisories@github.comhttps://github.com/poweradmin/poweradmin/releases/tag/v4.2.4
security-advisories@github.comhttps://github.com/poweradmin/poweradmin/releases/tag/v4.3.3
security-advisories@github.comhttps://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "poweradmin",
          "vendor": "poweradmin",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.2.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.3.0, \u003c 4.3.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled `HTTP_HOST` request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An unauthenticated attacker can poison the `redirect_uri` sent to the Identity Provider, causing the IdP to redirect the victim\u0027s authorization code to an attacker-controlled server - resulting in full account takeover with no credentials required. Versions 4.2.4 and 4.3.3 patch the issue."
    }
  ],
  "id": "CVE-2026-54588",
  "lastModified": "2026-06-25T20:18:11.603",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54588",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-24T12:20:38.664321Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-23T23:16:49.863",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/poweradmin/poweradmin/releases/tag/v4.2.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/poweradmin/poweradmin/releases/tag/v4.3.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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