CVE-2025-32873
Status: AnalyzedMedium (5.3)—
An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Base score: 5.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 14%
- Percentile among all scored CVEs: 96
- Score date: 10/6/2026
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-770
References
Raw JSON (NVD)
Show
{
"id": "CVE-2025-32873",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-32873",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-05-08T14:36:22.376528Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "cve@mitre.org",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "djangoproject",
"product": "Django",
"versions": [
{
"status": "affected",
"version": "4.2",
"lessThan": "4.2.21",
"versionType": "custom"
},
{
"status": "affected",
"version": "5.1",
"lessThan": "5.1.9",
"versionType": "custom"
},
{
"status": "affected",
"version": "5.2",
"lessThan": "5.2.1",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-05-08T04:17:18.157",
"references": [
{
"url": "https://docs.djangoproject.com/en/dev/releases/security/",
"tags": [
"Release Notes"
],
"source": "cve@mitre.org"
},
{
"url": "https://groups.google.com/g/django-announce",
"tags": [
"Mailing List"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.djangoproject.com/weblog/2025/may/07/security-releases/",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.openwall.com/lists/oss-security/2025/05/07/1",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "cve@mitre.org",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags()."
},
{
"lang": "es",
"value": "Se descubrió un problema en Django 4.2 (anterior a 4.2.21), 5.1 (anterior a 5.1.9) y 5.2 (anterior a 5.2.1). La función django.utils.html.strip_tags() es vulnerable a una posible denegación de servicio (rendimiento lento) al procesar entradas que contienen grandes secuencias de etiquetas HTML incompletas. El filtro de plantilla striptags también es vulnerable, ya que está basado en strip_tags()."
}
],
"lastModified": "2026-06-17T09:12:43.770",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "101C65E4-566E-4B85-9C4B-7ED32B0713BD",
"versionEndExcluding": "4.2.21",
"versionStartIncluding": "4.2.0"
},
{
"criteria": "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A87163B0-95FF-4F8F-9D6A-24DBE914CE93",
"versionEndExcluding": "5.1.9",
"versionStartIncluding": "5.1"
},
{
"criteria": "cpe:2.3:a:djangoproject:django:5.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4B2D6B37-4BCA-4431-8A03-6BDC7B2BD42D"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}