FKIE_CVE-2025-8031

Vulnerability from fkie_nvd - Published: 2025-07-22 21:15 - Updated: 2026-04-13 15:17
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1971719Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-56/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-58/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-59/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-61/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-62/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2025-63/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
mozilla firefox *
mozilla thunderbird *
mozilla thunderbird *
mozilla thunderbird *
To clipboard 

{
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    {
      "nodes": [
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          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "7C22C9BA-7B86-487A-B0A4-419A0D163B56",
              "versionEndExcluding": "128.13.0",
              "vulnerable": true
            },
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              "matchCriteriaId": "8684A46E-D70A-4830-8971-A6DCC360F422",
              "versionEndExcluding": "141.0",
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  "cveTags": [],
  "descriptions": [
    {
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      "value": "The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1."
    },
    {
      "lang": "es",
      "value": "La parte `username:password` no se elimin\u00f3 correctamente de las URL en los informes de CSP, lo que podr\u00eda filtrar credenciales de autenticaci\u00f3n b\u00e1sica HTTP. Esta vulnerabilidad afecta a Firefox \u0026lt; 141, Firefox ESR \u0026lt; 128.13, Firefox ESR \u0026lt; 140.1, Thunderbird \u0026lt; 141, Thunderbird \u0026lt; 128.13 y Thunderbird \u0026lt; 140.1."
    }
  ],
  "id": "CVE-2025-8031",
  "lastModified": "2026-04-13T15:17:09.433",
  "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": "2025-07-22T21:15:50.257",
  "references": [
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      "source": "security@mozilla.org",
      "tags": [
        "Permissions Required"
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1971719"
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      "type": "Secondary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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