CVE-2026-128332
listmonk 6.0.0 before 7.0.0-beta.2 TOTP Brute-Force via /admin/login/twofa
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
Listmonk 6.0.0 before 7.0.0-beta.2 contains a 2FA bypass vulnerability that allows attackers with a valid password to brute-force TOTP codes because the attempt counter resets on every new password login. Attackers can repeatedly submit credentials to POST /admin/login to obtain fresh tokens, each allowing 15 more guesses, gaining sessions for 2FA-protected accounts including Super Admin.
| CWE | CWE-307 |
| Vendor | knadh |
| Product | listmonk |
| Published | Nov 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for knadh listmonk
Be the first to know when new high vulnerabilities affecting knadh listmonk are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
knadh / listmonk
6.0.0 < 7.0.0-beta.2
References
github.com: https://github.com/knadh/listmonk/commit/3f62a55c13dbc679b29238e890e4b90d6d4996d8 github.com: https://github.com/knadh/listmonk/releases/tag/v7.0.0-beta.2 github.com: https://github.com/knadh/listmonk/blob/v7.0.0-beta.1/internal/tmptokens/tmptokens.go#L13-L88 github.com: https://github.com/knadh/listmonk/blob/v7.0.0-beta.1/cmd/auth.go#L514-L568 vulncheck.com: https://www.vulncheck.com/advisories/listmonk-6.0.0-before-7.0.0-beta.2-totp-brute-force-via-admin-login-twofa
Credits
Komiljon Ayubov Kailash Nadh