EIP-2026-100811
PRE-CVEHiFriend - 'cgi-bin/hifriend.pl' Open Email Relay
Title source: legacyExploitation Summary
EIP tracks 1 public exploit for EIP-2026-100811. PoCs published by Perforin.
AI-analyzed exploit summary This Perl script exploits an open-email-relay vulnerability in HiFriend (hifriend.pl) by crafting a POST request to send unsolicited bulk email with forged headers. It demonstrates the vulnerability by injecting arbitrary sender and recipient details.
Description
HiFriend - 'cgi-bin/hifriend.pl' Open Email Relay
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Perforin · perlwebappscgi
https://www.exploit-db.com/exploits/32094
This Perl script exploits an open-email-relay vulnerability in HiFriend (hifriend.pl) by crafting a POST request to send unsolicited bulk email with forged headers. It demonstrates the vulnerability by injecting arbitrary sender and recipient details.
Classification
Working Poc 95%
Attack Type
Other
Complexity
Trivial
Reliability
Reliable
Target:
HiFriend (hifriend.pl) by Hibyte Software (free version)
No auth needed
Prerequisites:
Access to a vulnerable HiFriend installation · Network connectivity to the target server
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026
Full analysis →
Details
Status
pre_cve
Tracked Since
Feb 18, 2026