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CVE-2026-108109GHSA-337R-RRRC-R559

PHPNuxBill through 2025.3.20 Account Takeover via Brute-Forceable Password Reset Code

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Fix
Fix or patch referenced
Public exploit
None on Exploit-DB
CISA SSVC
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).

SSVC documentation

Summary

PHPNuxBill through 2025.3.20 contains an account takeover vulnerability in the customer password reset flow in system/controllers/forgot.php that allows unauthenticated attackers to brute-force the 6-digit otp_code. Attackers knowing a customer username can guess the code without attempt limits or lockout, then read the newly set password from the HTTP response to hijack the account.

Affected versions

  • hotspotbilling phpnuxbill

    through 2025.3.20

References 5

GitHub · hotspotbilling/phpnuxbill

vulncheck.com