title: HTML injection in AdminUI through email subject
description: Proofpoint Enterprise Protection contains a stored XSS vulnerability in the AdminUI. An unauthenticated attacker can send a specially crafted email with HTML in the subject which triggers XSS when viewing quarantined messages.  This issue affects Proofpoint Enterprise Protection: from 8.20.0 before patch 4796, from 8.18.6 before patch 4795 and all other prior versions.
problem types: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
affected:
{
defaultStatus: affected
modules: AdminUI
product: Proofpoint Enterprise Protection
vendor: Proofpoint
versions:
changes: [at: patch 4796, status: unaffected], lessThan: patch 4796, status: affected, version: 8.20.0, versionType: semver
changes: [at: patch 4795, status: unaffected], lessThan: patch 4795, status: affected, version: 8.18.6, versionType: semver
lessThan: 8.18.6, status: affected, version: 8.0, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 6.1
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL