CVE-2026-47181 PUBLISHED

PenguinMod-BackendApi: NoSQL Injection in Password Reset Endpoint Allows Account Takeover

Assigner: GitHub_M
Reserved: 18.05.2026 Published: 11.06.2026 Updated: 11.06.2026

PenguinMod-BackendApi is the backend api for penguinmod. Prior to version 1.0.0, a NoSQL injection vulnerability in the password reset endpoint allows any authenticated user to change the password of an account, leading to full account takeover. An attacker only needs a registered account and a valid password reset token for their own account. This issue has been patched in version 1.0.0.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	PenguinMod
Product	PenguinMod-BackendApi
Versions	Version < 1.0.0 is affected

References

https://github.com/PenguinMod/PenguinMod-BackendApi/security/advisories/GHSA-wwwc-jwrc-3pj8

Problem Types

CWE-20: Improper Input Validation CWE
CWE-943: Improper Neutralization of Special Elements in Data Query Logic CWE