FKIE_CVE-2016-2221
Vulnerability from fkie_nvd - Published: 2016-05-22 01:59 - Updated: 2026-06-17 00:43
Severity
Summary
Open redirect vulnerability in the wp_validate_redirect function in wp-includes/pluggable.php in WordPress before 4.4.2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a malformed URL that triggers incorrect hostname parsing, as demonstrated by an https:example.com URL.
References
{
"affected": [
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"affectedData": [
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"vendor": "n/a",
"versions": [
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"status": "affected",
"version": "n/a"
}
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],
"source": "security@debian.org"
}
],
"configurations": [
{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E341F596-9936-4B27-9494-B4A75DBD27BD",
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"descriptions": [
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"lang": "en",
"value": "Open redirect vulnerability in the wp_validate_redirect function in wp-includes/pluggable.php in WordPress before 4.4.2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a malformed URL that triggers incorrect hostname parsing, as demonstrated by an https:example.com URL."
},
{
"lang": "es",
"value": "Vulnerabilidad de redirecci\u00f3n abierta en la funci\u00f3n wp_validate_redirect en wp-includes/pluggable.php en WordPress en versiones anteriores a 4.4.2 permite a atacantes remotos redirigir a los usuarios a sitios web arbitrarios y llevar acabo ataques de phishing a trav\u00e9s de una URL mal formada que desencadena un an\u00e1lisis gramatical del nombre de host incorrecto, seg\u00fan lo demostrado mediante una URL https:example.com."
}
],
"evaluatorComment": "\u003ca href=\"http://cwe.mitre.org/data/definitions/601.html\"\u003eCWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)\u003c/a\u003e",
"id": "CVE-2016-2221",
"lastModified": "2026-06-17T00:43:41.713",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
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"attackVector": "NETWORK",
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"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
"version": "3.0"
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"impactScore": 4.0,
"source": "nvd@nist.gov",
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},
"published": "2016-05-22T01:59:14.103",
"references": [
{
"source": "security@debian.org",
"url": "http://www.debian.org/security/2016/dsa-3472"
},
{
"source": "security@debian.org",
"url": "http://www.securityfocus.com/bid/82463"
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{
"source": "security@debian.org",
"url": "http://www.securitytracker.com/id/1034933"
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{
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"tags": [
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"url": "https://codex.wordpress.org/Version_4.4.2"
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"url": "https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/"
},
{
"source": "security@debian.org",
"url": "https://wpvulndb.com/vulnerabilities/8377"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2016/dsa-3472"
},
{
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"url": "http://www.securityfocus.com/bid/82463"
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{
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"url": "http://www.securitytracker.com/id/1034933"
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"sourceIdentifier": "security@debian.org",
"vulnStatus": "Modified",
"weaknesses": [
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"value": "NVD-CWE-Other"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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