CVE-2021-39166
Status: ModifiedMedium (5.4)—
Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Base score: 5.4
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.78%
- Percentile among all scored CVEs: 55
- Score date: 10/10/2026
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)
CWEs
- CWE-79
References
Raw JSON (NVD)
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{
"id": "CVE-2021-39166",
"cveTags": [],
"metrics": {
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{
"type": "Primary",
"source": "nvd@nist.gov",
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"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
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},
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"impactScore": 2.9,
"baseSeverity": "LOW",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
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"published": "2021-09-01T14:15:07.947",
"references": [
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"vulnStatus": "Modified",
"weaknesses": [
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"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
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"lang": "en",
"value": "CWE-79"
}
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"descriptions": [
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"lang": "en",
"value": "Pimcore is an open source data & experience management platform. Prior to version 10.1.2, text-values were not properly escaped before printed in the version preview. This allowed XSS by authenticated users with access to the resources. This issue is patched in Pimcore version 10.1.2."
},
{
"lang": "es",
"value": "Pimcore es una plataforma de administración de datos y experiencias de código abierto. En versiones anteriores a 10.1.2, los valores de texto no se escapaban apropiadamente versiones anteriores a imprimirse en la visualización previa de la versión. Esto permitía el uso de un ataque de tipo XSS por parte de usuarios autenticados con acceso a los recursos. Este problema se ha parcheado en Pimcore versión 10.1.2"
}
],
"lastModified": "2026-06-17T04:03:13.963",
"configurations": [
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"nodes": [
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"cpeMatch": [
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"sourceIdentifier": "security-advisories@github.com"
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