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CVE-2018-5133

🗓️ 11 Jun 2018 21:00:00Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 133 Views🌐 WEB

If "app.support.baseURL" preference is changed by a local program to contain HTML and script, it gets executed without sanitization. Affects Firefox < 59

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
mozillafirefoxRange<59.0
Node
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "59",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
app.support.baseURLnestedchrome://browser/content/preferences/in-content/preferences.xulStored content in app.support.baseURL is executed when the preferences page is loaded and a search is performed, allowing HTML/script to run (stored XSS via chrome-internal preferences).CWE-200

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17 Jun 2026 01:59Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.3
CVSS 36.5
EPSS0.01541
133