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.

Advisories
Source ID Title
EUVD EUVD EUVD-2023-58053 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 03 Jun 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Proofpoint

Published:

Updated: 2025-06-03T14:29:46.790Z

Reserved: 2023-10-25T17:57:53.751Z

Link: CVE-2023-5770

cve-icon Vulnrichment

Updated: 2024-08-02T08:07:32.637Z

cve-icon NVD

Status : Modified

Published: 2024-01-09T22:15:43.400

Modified: 2024-11-21T08:42:27.270

Link: CVE-2023-5770

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.