CVE-2021-36899
Estado: ModificadaMedia (4.8)—
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 4.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.50%
- Percentil entre todas las CVEs puntuadas: 41
- 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-79
Referencias
- https://patchstack.com/database/vulnerability/wp-asset-clean-up/wordpress-asset-cleanup-page-speed-booster-plugin-1-3-8-4-authenticated-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
- https://wordpress.org/plugins/wp-asset-clean-up/#developers
- https://patchstack.com/database/vulnerability/wp-asset-clean-up/wordpress-asset-cleanup-page-speed-booster-plugin-1-3-8-4-authenticated-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
- https://wordpress.org/plugins/wp-asset-clean-up/#developers
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-36899",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-36899",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-02-20T19:22:48.459438Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "audit@patchstack.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 4.8,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "HIGH",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 1.7
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 4.8,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "HIGH",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 1.7
}
]
},
"affected": [
{
"source": "audit@patchstack.com",
"affectedData": [
{
"vendor": "Gabe Livan",
"product": "Asset CleanUp: Page Speed Booster (WordPress plugin)",
"versions": [
{
"status": "affected",
"version": "<= 1.3.8.4",
"versionType": "custom",
"lessThanOrEqual": "1.3.8.4"
}
]
}
]
}
],
"published": "2022-10-11T18:15:09.790",
"references": [
{
"url": "https://patchstack.com/database/vulnerability/wp-asset-clean-up/wordpress-asset-cleanup-page-speed-booster-plugin-1-3-8-4-authenticated-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve",
"tags": [
"Third Party Advisory"
],
"source": "audit@patchstack.com"
},
{
"url": "https://wordpress.org/plugins/wp-asset-clean-up/#developers",
"tags": [
"Product",
"Third Party Advisory"
],
"source": "audit@patchstack.com"
},
{
"url": "https://patchstack.com/database/vulnerability/wp-asset-clean-up/wordpress-asset-cleanup-page-speed-booster-plugin-1-3-8-4-authenticated-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://wordpress.org/plugins/wp-asset-clean-up/#developers",
"tags": [
"Product",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "audit@patchstack.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress."
},
{
"lang": "es",
"value": "Una vulnerabilidad de tipo Cross-Site Scripting (XSS) Reflejado y Autenticado (admin+) en Asset CleanUp de Gabe Livan: Page Speed Booster plugin versiones anteriores a 1.3.8.4 incluyéndola en WordPress"
}
],
"lastModified": "2026-06-17T03:59:36.033",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:asset_cleanup\\:_page_speed_booster_project:asset_cleanup\\:_page_speed_booster:*:*:*:*:*:wordpress:*:*",
"vulnerable": true,
"matchCriteriaId": "6BC21292-4784-48DA-ADC0-E6CC277454D2",
"versionEndExcluding": "1.3.8.5"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "audit@patchstack.com"
}