CVE Vulnerability

CVE-2021-43787

Nodebb is an open source Node.js based forum software. In affected versions a prototype pollution vulnerability in the uploader module allowed a malicious user to inject arbitrary data (i.e. javascript) into the DOM, theoretically allowing for an account takeover when used in conjunction with a path traversal vulnerability disclosed at the same time as this report. The vulnerability has been patched as of v1.18.5. Users are advised to upgrade as soon as possible.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5 Patch Release Notes
https://github.com/NodeBB/NodeBB/commit/1783f918bc19568f421473824461ff2ed7755e4c Patch Third Party Advisory
https://github.com/NodeBB/NodeBB/security/advisories/GHSA-wx69-rvg3-x7fc Patch Third Party Advisory
https://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nodebb:nodebb:*:*:*:*:*:*:*:*
Information

Published : 2021-11-29 08:15

Updated : 2022-10-27 07:45

NVD link : CVE-2021-43787

Mitre link : CVE-2021-43787

Products Affected
No products.
CWE
CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-79