CVE-2023-5770

Summary

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.

Affected Software

Weaknesses

• CWE-838: CWE-838 Inappropriate Encoding for Output Context

ADP Enrichment

CVE Program Container

Additional References

• https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2023-0009

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2023-0009

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