CVE-2003-0990

SquirrelMail 1.4.0 - GPG Plugin 1.1 - Command Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2003-0990. PoCs published by Metasploit, including Metasploit module exploits/unix/webapp/squirrelmail_pgp_plugin.

AI-analyzed exploit summary This Metasploit module exploits a command execution vulnerability in the PGP plugin of SquirrelMail by sending a maliciously crafted email. The payload is embedded in the email body and executed when the email is viewed.

Description

The parseAddress code in (1) SquirrelMail 1.4.0 and (2) GPG Plugin 1.1 allows remote attackers to execute commands via shell metacharacters in the "To:" field.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotelinux
https://www.exploit-db.com/exploits/16888

This Metasploit module exploits a command execution vulnerability in the PGP plugin of SquirrelMail by sending a maliciously crafted email. The payload is embedded in the email body and executed when the email is viewed.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: SquirrelMail PGP plugin < 2.1
No auth needed
Prerequisites: SMTP access to the target server · PGP plugin enabled in SquirrelMail
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC MANUAL
rubypocunix
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/squirrelmail_pgp_plugin.rb

This Metasploit module exploits a command execution vulnerability in the SquirrelMail PGP plugin by sending a maliciously crafted email. The payload is embedded in the email body and executed when the email is viewed in SquirrelMail with the PGP plugin enabled.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: SquirrelMail PGP plugin < 2.1
No auth needed
Prerequisites: SMTP access to send emails · SquirrelMail with vulnerable PGP plugin installed · Target user must view the malicious email
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/14079
Various Sources x_refsource_misc
http://www.bugtraq.org/advisories/_BSSADV-0001.txt
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=107247236124180&w=2
Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/9296
Exploit, Vendor Advisory mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/348366

Scores

EPSS 0.2879
EPSS Percentile 97.9%

Details

Status published
Published Jan 20, 2004
Tracked Since Feb 18, 2026