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CVE-2015-8622

Status: ModifiedMedium (6.1)—

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1, when is configured with a relative URL, allows remote authenticated users to inject arbitrary web script or HTML via wikitext, as demonstrated by a wikilink to a page named "javascript:alert('XSS!')."

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Mediawiki — Mediawiki

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2015-8622",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2017-03-23T20:59:00.437",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/21/8",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
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      "source": "cve@mitre.org"
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      "source": "cve@mitre.org"
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    {
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html",
      "tags": [
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        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://phabricator.wikimedia.org/T117899",
      "tags": [
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        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
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      "url": "http://www.openwall.com/lists/oss-security/2015/12/21/8",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://phabricator.wikimedia.org/T117899",
      "tags": [
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        "Patch",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site scripting (XSS) vulnerability in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1, when is configured with a relative URL, allows remote authenticated users to inject arbitrary web script or HTML via wikitext, as demonstrated by a wikilink to a page named \"javascript:alert('XSS!').\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de secuencias de comandos en sitios cruzados (XSS) en MediaWiki en versiones anteriores a 1.23.12, 1.24.x en versiones anteriores a 1.24.5, 1.25.x en versiones anteriores a 1.25.4 y 1.26.x en versiones anteriores a 1.26.1, cuando se configura con una URL relativa, permite a usuarios remotos autenticados inyectar secuencias de comandos web o HTML arbitrario a través de wikitext, como demuestra un wikilink a una página llamada \"javascript:alert('XSS!')\"."
    }
  ],
  "lastModified": "2026-06-17T00:34:52.210",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndIncluding": "1.23.11"
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            },
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            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E90C95FB-71CA-4CA1-935D-58A08244A81F"
            },
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              "vulnerable": true,
              "matchCriteriaId": "5DDBD41F-C2D5-4D7C-B069-FBC2C8EBB81C"
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          "operator": "OR"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}