8.7 HIGH
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): High (H)
- Vulnerable System Impact Integrity (VI): High (H)
- Vulnerable System Impact Availability (VA): High (H)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): High (H)
- Modified Vulnerable System Impact Integrity (MVI): High (H)
- Modified Vulnerable System Impact Availability (MVA): High (H)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
Grav Login Plugin 3.8.11 Privilege Escalation via Profile Update
The Grav Login plugin (grav-plugin-login) versions <= 3.8.11 contain a privilege escalation flaw in the authenticated profile self-update handler (processUserProfile(), the update_user task). Unlike the registration handler, this handler does not strip privilege fields ('groups','access') from user-submitted form data before persisting them. When an administrator has added 'groups' and/or 'access' to plugins.login.user_registration.fields and the default 'regular'/DataUser account backend is in use, a low-privilege authenticated user can POST crafted profile form data (e.g. access[admin][super]=true) to escalate to super-admin, enabling admin panel access, scheduler abuse (RCE), and Twig evaluation. Fixed in 3.8.12.
References
-
-
VulnCheck Advisory: Grav Login Plugin 3.8.11 Privilege Escalation via Profile Update third-party-advisory
Affected products
- <3.8.12
- ==3.8.12
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Package maintainers
-
@xiaoxiangmoe ZHAO JinXiang <xiaoxiangmoe@gmail.com>
-
@Zaczero Kamil Monicz <kamil@monicz.dev>
-
@honnip Jung seungwoo <me@honnip.page>
-
@rycee Robert Helgesson <robert@rycee.net>
-
@NickCao Nick Cao <nickcao@nichi.co>
-
@bkchr Bastian Köcher <nixos@kchr.de>
-
@nyanloutre Paul Trehiou <paul@nyanlout.re>
-
@peterhoeg Peter Hoeg <peter@hoeg.com>
-
@mjm Matt Moriarity <matt@mattmoriarity.com>
-
@FRidh Frederik Rietdijk <fridh@fridh.nl>
-
@LunNova Luna Nova <nixpkgs-maintainer@lunnova.dev>
-
@K900 Ilya K. <me@0upti.me>
-
@SuperSandro2000 Sandro Jäckel <sandro.jaeckel@gmail.com>
-
@ilya-fedin Ilya Fedin <fedin-ilja2010@ya.ru>
-
@stigtsp Stig Palmquist <stig@stig.io>
-
@gador Florian Brandes <florian.brandes@posteo.de>
-
@Pandapip1 Gavin John <gavinnjohn@gmail.com>
-
@technobaboo Nova King
-
@AdrielVelazquez Adriel Velazquez <AdrielVelazquez@gmail.com>
-
@u3kkasha Fida Waseque Choudhury <fida.waseque@gmail.com>