CVE-2026-47181: CWE-20: Improper Input Validation in PenguinMod PenguinMod-BackendApi
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.
AI Analysis
Technical Summary
PenguinMod-BackendApi versions before 1.0.0 contain an improper input validation vulnerability (CWE-20) leading to NoSQL injection in the password reset endpoint. An attacker with a registered account and a valid password reset token for their own account can exploit this flaw to change the password of any other account, enabling full account takeover. The issue is fixed in version 1.0.0.
Potential Impact
Successful exploitation allows an authenticated attacker to take over any user account by changing its password, compromising account confidentiality and integrity. This can lead to unauthorized access and potential further abuse of affected accounts.
Mitigation Recommendations
Upgrade PenguinMod-BackendApi to version 1.0.0 or later, where this vulnerability has been patched. No other mitigation is indicated by the vendor advisory.
CVE-2026-47181: CWE-20: Improper Input Validation in PenguinMod PenguinMod-BackendApi
Description
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.
CVSS v4.0
Score 8.7high
Affected software
pkg:github/penguinmod/PenguinMod-BackendApiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
PenguinMod-BackendApi versions before 1.0.0 contain an improper input validation vulnerability (CWE-20) leading to NoSQL injection in the password reset endpoint. An attacker with a registered account and a valid password reset token for their own account can exploit this flaw to change the password of any other account, enabling full account takeover. The issue is fixed in version 1.0.0.
Potential Impact
Successful exploitation allows an authenticated attacker to take over any user account by changing its password, compromising account confidentiality and integrity. This can lead to unauthorized access and potential further abuse of affected accounts.
Mitigation Recommendations
Upgrade PenguinMod-BackendApi to version 1.0.0 or later, where this vulnerability has been patched. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-18T22:07:37.434Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2b05d1815e7002b81ea67d
Added to database: 06/11/2026, 19:00:33 UTC
Last enriched: 06/19/2026, 18:18:00 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 78
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