Path traversal and code execution via prototype vulnerability

CRITICAL 9.8CVE-2023-26045 · GHSA-vh2g-6c4x-5hmp · Published 24/07/2023 · updated 17/06/2026

Package	Affected versions	Patched versions
nodebb nodebb	`≥ 2.5.0, < 2.8.7`	`2.8.7`
nodebb npm	`≥ 2.5.0, < 2.8.7`	`2.8.7`

Description

Impact

Due to the use of the object destructuring assignment syntax in the user export code path, combined with a path traversal vulnerability, a specially crafted payload could invoke the user export logic to arbitrarily execute javascript files on the local disk.

Patches

Patched in v2.8.7

Workarounds

Site maintainers can cherry pick ec58700f6dff8e5b4af1544f6205ec362b593092 into their codebase to patch the exploit.

NVD description

NodeBB is Node.js based forum software. Starting in version 2.5.0 and prior to version 2.8.7, due to the use of the object destructuring assignment syntax in the user export code path, combined with a path traversal vulnerability, a specially crafted payload could invoke the user export logic to arbitrarily execute javascript files on the local disk. This issue is patched in version 2.8.7. As a workaround, site maintainers can cherry pick the fix into their codebase to patch the exploit.

References

NodeBB/NodeBB security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2023-26045 · ADVISORY
NodeBB/NodeBB commit ec58700 · WEB
NodeBB/NodeBB · PACKAGE
security.netapp.com/advisory/ntap-20230831-0004 · WEB
security.netapp.com/advisory/ntap-20230831-0004

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