FKIE_CVE-2025-54336

Vulnerability from fkie_nvd - Published: 2025-08-19 14:15 - Updated: 2025-08-26 15:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In Plesk Obsidian 18.0.70, _isAdminPasswordValid uses an == comparison. Thus, if the correct password is "0e" followed by any digit string, then an attacker can login with any other string that evaluates to 0.0 (such as the 0e0 string). This occurs in admin/plib/LoginManager.php.
References
cve@mitre.orghttps://blog.aziz.tn/2025/08/cve-2025-54336.html/
cve@mitre.orghttps://support.plesk.com/hc/en-us/articles/33785727869847-Vulnerability-CVE-2025-54336
cve@mitre.orghttps://www.plesk.com/blog/plesk-news-announcements/introducing-plesk-obsidian-18-0-70-anniversary-edition/
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Plesk Obsidian 18.0.70, _isAdminPasswordValid uses an == comparison. Thus, if the correct password is \"0e\" followed by any digit string, then an attacker can login with any other string that evaluates to 0.0 (such as the 0e0 string). This occurs in admin/plib/LoginManager.php."
    },
    {
      "lang": "es",
      "value": "En Plesk Obsidian 18.0.70, _isAdminPasswordValid utiliza una comparaci\u00f3n ==. Por lo tanto, si la contrase\u00f1a correcta es \"0e\" seguida de cualquier cadena de d\u00edgitos, un atacante puede iniciar sesi\u00f3n con cualquier otra cadena que eval\u00fae 0.0 (como la cadena 0e0). Esto ocurre en admin/plib/LoginManager.php."
    }
  ],
  "id": "CVE-2025-54336",
  "lastModified": "2025-08-26T15:15:47.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-19T14:15:40.080",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://blog.aziz.tn/2025/08/cve-2025-54336.html/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://support.plesk.com/hc/en-us/articles/33785727869847-Vulnerability-CVE-2025-54336"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.plesk.com/blog/plesk-news-announcements/introducing-plesk-obsidian-18-0-70-anniversary-edition/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-697"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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