CVE-2021-4340
Estado: ModificadaAlta (7.5)—
The uListing plugin for WordPress is vulnerable to generic SQL Injection via the ‘listing_id’ parameter in versions up to, and including, 1.6.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.18%
- Percentil entre todas las CVEs puntuadas: 67
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-89
- CWE-89
Referencias
- https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/10b7a88f-ce46-42aa-ab5a-81f38288a659?source=cve
- https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/10b7a88f-ce46-42aa-ab5a-81f38288a659?source=cve
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-4340",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-4340",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2024-12-26T17:41:07.837158Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "stylemix",
"product": "Directory Listings WordPress plugin – uListing",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.7",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2023-06-07T02:15:13.060",
"references": [
{
"url": "https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/",
"tags": [
"Exploit"
],
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10b7a88f-ce46-42aa-ab5a-81f38288a659?source=cve",
"tags": [
"Third Party Advisory"
],
"source": "security@wordfence.com"
},
{
"url": "https://blog.nintechnet.com/wordpress-ulisting-plugin-fixed-multiple-critical-vulnerabilities/",
"tags": [
"Exploit"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10b7a88f-ce46-42aa-ab5a-81f38288a659?source=cve",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-89"
}
]
},
{
"type": "Secondary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-89"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The uListing plugin for WordPress is vulnerable to generic SQL Injection via the ‘listing_id’ parameter in versions up to, and including, 1.6.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database."
}
],
"lastModified": "2026-06-17T04:19:32.390",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:stylemixthemes:ulisting:*:*:*:*:*:wordpress:*:*",
"vulnerable": true,
"matchCriteriaId": "EE000334-7DBA-4256-8E71-EAF5235F251C",
"versionEndIncluding": "1.6.6"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@wordfence.com"
}