CVE-2021-43787 CRITICAL

CVE-2021-43787: XSS via prototype pollution

Vendor Nodebb

Product NodeBB

Weakness CWE-79 · XSS

Published November 29, 2021

Last update August 4, 2024

View on NVD All CVEs

CVSS base score

9.0/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction Required

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 29, 2021 CVE published

August 4, 2024 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-43787 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

Related vulnerabilities

04Related CVE

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