Vulnerability · Published Mar 19, 2025 · Assigned by Proofpoint
CVE-2025-0431Enterprise Protection Backslash URL Rewrite Bypass
Medium 5.8
In plain English
A medium-severity security flaw in Enterprise Protection from Proofpoint. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Official description
Enterprise Protection contains a vulnerability in URL rewriting that allows an unauthenticated remote attacker to send an email which bypasses URL protections impacting the integrity of recipient's email. This occurs due to improper filtering of backslashes within URLs and affects all versions of 8.21, 8.20 and 8.18 prior to 8.21.0 patch 5115, 8.20.6 patch 5114 and 8.18.6 patch 5113 respectively.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Proofpoint | Enterprise Protection | 8.18.6 – before patch 51138.20.6 – before patch 51148.21.0 – before patch 5115 |
Weakness: CWE-790 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N