WS-2022-0339
Published:May 15, 2026
Updated:May 15, 2026
Password Reset Poisoning in elgg/elgg.
Elgg uses the HTTP Host-Header in a password reset request to generate the password reset link that is sent to the user in an email without any filters or checks. This allows an attacker to craft a password reset request using a manipulated host header, resulting in reset-token leakage and thus account takeover if the victim clicks the manipulated password reset link.
Affected Packages
hypejunction/hypejunction (PHP):
Affected version(s) =dev-no-replyFix Suggestion:
Update to version no_fixelgg/elgg (PHP):
Affected version(s) >=2.0.0-alpha.1 <2.3.9Fix Suggestion:
Update to version 2.3.9smellems/wet4 (PHP):
Affected version(s) =dev-masterFix Suggestion:
Update to version no_fixelgg/elgg (PHP):
Affected version(s) >=3.1.0 <3.1.4Fix Suggestion:
Update to version 3.1.4elgg/elgg (PHP):
Affected version(s) >=3.2.x-dev <3.3.0Fix Suggestion:
Update to version 3.3.0elgg/elgg (PHP):
Affected version(s) >=3.x-dev <3.0.1Fix Suggestion:
Update to version 3.0.1elgg/elgg (PHP):
Affected version(s) >=3.3.x-dev <3.3.16Fix Suggestion:
Update to version 3.3.16elgg/elgg (PHP):
Affected version(s) >=3.3.17 <3.3.20Fix Suggestion:
Update to version 3.3.20elgg/elgg (PHP):
Affected version(s) >=1.8.3 <1.12.18Fix Suggestion:
Update to version 1.12.18elgg/elgg (PHP):
Affected version(s) =4.2.0 <4.2.x-devFix Suggestion:
Update to version 4.2.x-develgg/elgg (PHP):
Affected version(s) >=4.0.0-beta.1 <4.0.0-beta.3Fix Suggestion:
Update to version 4.0.0-beta.3elgg/elgg (PHP):
Affected version(s) >=4.2.1 <4.3.x-devFix Suggestion:
Update to version 4.3.x-develgg/elgg (PHP):
Affected version(s) >=3.0.4 <3.0.7Fix Suggestion:
Update to version 3.0.7elgg/elgg (PHP):
Affected version(s) >=4.3.1 <4.3.3Fix Suggestion:
Update to version 4.3.3acosf/archersys (PHP):
Affected version(s) >=2.0.0-nightly <2.2Fix Suggestion:
Update to version 2.2elgg/elgg (PHP):
Affected version(s) >=4.1.1 <4.1.3Fix Suggestion:
Update to version 4.1.3elgg/elgg (PHP):
Affected version(s) >=2.3.13 <3.0.0-rc.2Fix Suggestion:
Update to version 3.0.0-rc.2elgg/elgg (PHP):
Affected version(s) >=4.x-dev <4.0.2Fix Suggestion:
Update to version 4.0.2acosf/archersys (PHP):
Affected version(s) >=dev-hdddwinstudent <1.0Fix Suggestion:
Update to version 1.0elgg/elgg (PHP):
Affected version(s) =dev-master <1.0Fix Suggestion:
Update to version 1.0Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH