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CVE-2023-5770

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CVE-2023-5770

Published: Jan 9, 2024

Modified: Jun 3, 2025

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

Proofpoint Enterprise Protection contains a vulnerability in the email delivery agent that allows an unauthenticated attacker to inject improperly encoded HTML into the email body of a message through the email subject. The vulnerability is caused by inappropriate encoding when rewriting the email before delivery.This issue affects Proofpoint Enterprise Protection: from 8.20.2 before patch 4809, from 8.20.0 before patch 4805, from 8.18.6 before patch 4804 and all other prior versions.

VendorProductVersions

Proofpoint

Proofpoint Enterprise Protection

affected
8.20.2 - < patch 4809
affected
8.20.0 - < patch 4805
affected
8.18.6 - < patch 4804
affected
8.0 - < 8.18.6

Weaknesses (CWE)

CWE-838

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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