CVE-2003-0121

Clearswift MAILsweeper 4.x - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2003-0121. PoCs published by http-equiv.

AI-analyzed exploit summary This is a writeup describing a vulnerability in Clearswift MailSweeper where malformed MIME email attachments without a MIME-Version field bypass executable filtering. No exploit code is provided, only a description and reference link.

Description

Clearswift MAILsweeper 4.x allows remote attackers to bypass attachment detection via an attachment that does not specify a MIME-Version header field, which is processed by some mail clients.

Exploits (1)

exploitdb WRITEUP VERIFIED
by http-equiv · textremotewindows
https://www.exploit-db.com/exploits/22338

This is a writeup describing a vulnerability in Clearswift MailSweeper where malformed MIME email attachments without a MIME-Version field bypass executable filtering. No exploit code is provided, only a description and reference link.

Classification
Writeup 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Clearswift MailSweeper (version not specified)
No auth needed
Prerequisites: Ability to send emails to a target using MailSweeper
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=104716030503607&w=2
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/316311
Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/7044

Scores

EPSS 0.0307
EPSS Percentile 85.9%

Details

Status published
Products (4)
clearswift/mailsweeper 4.0
clearswift/mailsweeper 4.1
clearswift/mailsweeper 4.2
clearswift/mailsweeper 4.3
Published Mar 18, 2003
Tracked Since Feb 18, 2026