CVE-2022-46332Network attack vector

Administrator takeover via unescaped attachment names

Published Dec 6, 2022 · Updated Apr 23, 2025

Stored XSS in Proofpoint Enterprise Protection 8.19.0 and earlier allows remote attackers to gain administrator privileges via email. Admin Smart Search stores attacker-controlled attachment names from anonymous messages and renders them in its administrative interface without neutralizing executable web content. Exploitation requires an administrator to view the crafted message in the interface, after which the script runs with that administrator's UI authority.

CVSS severity9.6
Critical
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Proofpoint Enterprise Protection 8.19.0 and earlier allows remote attackers to gain administrator privileges via email. Admin Smart Search stores attacker-controlled attachment names from anonymous messages and renders them in its administrative interface without neutralizing executable web content. Exploitation requires an administrator to view the crafted message in the interface, after which the script runs with that administrator's UI authority.

The record

CVE
CVE-2022-46332
Published
Dec 6, 2022
Updated
Apr 23, 2025
Vendor
Proofpoint
Product
Proofpoint Enterprise Protection
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.* <=8.19.0 changes=[{"at":"8.19.0 patch 4546","status":"unaffected"},{"at":"8.18.6 patch 4545","status":"unaffected"},{"at":"8.18.4 patch 4544","status":"unaffected"},{"at":"8.13.22 patch 4543","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Proofpoint · Proofpoint Enterprise Protectionversion=8.* <=8.19.0 changes=[{"at":"8.19.0 patch 4546","status":"unaffected"},{"at":"8.18.6 patch 4545","status":"unaffected"},{"at":"8.18.4 patch 4544","status":"unaffected"},{"at":"8.13.22 patch 4543","status":"unaffected"}]

Published CVSS scores

9.6Proofpoint Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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