CVE-2005-4556

EXPLOITED

VisNetic Mail Server 8.3.0 build 1 - Remote File Inclusion via lang_settings or language Parameter

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2005-4556 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 2 public exploits from researchers including Tan Chew Keong.

AI-analyzed exploit summary The provided text describes a file inclusion vulnerability in IceWarp Universal WebMail, integrated into Deerfield VisNetic Mail Server and Merak Mail Server. It allows arbitrary local or remote file inclusion, leading to potential RCE or information disclosure.

Description

PHP remote file include vulnerability in IceWarp Web Mail 5.5.1, as used by Merak Mail Server 8.3.0r and VisNetic Mail Server version 8.3.0 build 1, when register_globals is enabled, allows remote attackers to include arbitrary local and remote PHP files via a URL in the (1) lang_settings and (2) language parameters in (a) accounts/inc/include.php and (b) admin/inc/include.php.

Exploits (2)

exploitdb WRITEUP VERIFIED
by Tan Chew Keong · textwebappsphp
https://www.exploit-db.com/exploits/26980

The provided text describes a file inclusion vulnerability in IceWarp Universal WebMail, integrated into Deerfield VisNetic Mail Server and Merak Mail Server. It allows arbitrary local or remote file inclusion, leading to potential RCE or information disclosure.

Classification
Writeup 90%
Attack Type
Rce | Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Merak Mail Server 8.3.0.r, VisNetic MailServer 8.3.0 build 1
No auth needed
Prerequisites: Network access to the target web interface
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WRITEUP VERIFIED
by Tan Chew Keong · textwebappsphp
https://www.exploit-db.com/exploits/26979

The exploit describes a file inclusion vulnerability in IceWarp Universal WebMail, allowing arbitrary local or remote file inclusion via the 'language' and 'lang_settings' parameters. This can lead to remote code execution or information disclosure.

Classification
Writeup 90%
Attack Type
Rce | Info Leak
Complexity
Trivial
Reliability
Reliable
Target: IceWarp Universal WebMail (integrated in Merak Mail Server 8.3.0.r and VisNetic MailServer 8.3.0 build 1)
No auth needed
Prerequisites: Access to the vulnerable web interface
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/22078
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/17865
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/16069
Exploit, Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/17046
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1015412
Mailing List mailing-list x_refsource_fulldisc
http://marc.info/?l=full-disclosure&m=113570229524828&w=2
Exploit, Vendor Advisory x_refsource_misc
http://secunia.com/secunia_research/2005-62/advisory/
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/420255/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/22077

Scores

EPSS 0.1037
EPSS Percentile 95.1%

Details

VulnCheck KEV 2005-12-27
Status published
Products (3)
deerfield/visnetic_mail_server 8.3.0_build1
icewarp/web_mail 5.5.1
merak/mail_server 8.3.0r
Published Dec 28, 2005
Tracked Since Feb 18, 2026