What’s Vulnerable › Vulnerabilities

CVE-2021-43788: Path traversal in translator module of NobeBB

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 25.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-29 · updated 2026-06-17
• Weakness: CWE-22

Description

Nodebb is an open source Node.js based forum software. Prior to v1.18.5, a path traversal vulnerability was present that allowed users to access JSON files outside of the expected `languages/` directory. The vulnerability has been patched as of v1.18.5. Users are advised to upgrade as soon as possible.

Affected products

• NodeBB: from 1.0.4 through 1.18.4

References

• https://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot/
• https://github.com/NodeBB/NodeBB/commit/c8b2fc46dc698db687379106b3f01c71b80f495f
• https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5
• https://github.com/NodeBB/NodeBB/security/advisories/GHSA-pfj7-2qfw-vwgm
• https://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot/
• https://github.com/NodeBB/NodeBB/commit/c8b2fc46dc698db687379106b3f01c71b80f495f
• https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5
• https://github.com/NodeBB/NodeBB/security/advisories/GHSA-pfj7-2qfw-vwgm

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