CVE-2023-26045
criticalpriority · track · 39EPSS 0.010 · 64 %ileEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-vh2g-6c4x-5hmpPath traversal and code execution via prototype vulnerability2023-07-25ghsa · osvUS
### Impact Due to the use of the [object destructuring assignment](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/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.
also known as (4)
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sources
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references (10)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-26045/cnnvd
- https://github.com/NodeBB/NodeBB/commit/ec58700f6dff8e5b4af1544f6205ec362b593092cnnvd
- https://github.com/NodeBB/NodeBB/security/advisories/GHSA-vh2g-6c4x-5hmpcnnvd
- https://security.netapp.com/advisory/ntap-20230831-0004/cnnvd
- https://github.com/NodeBB/NodeBB/commit/ec58700f6dff8e5b4af1544f6205ec362b593092enisa_euvd
- https://github.com/NodeBB/NodeBB/security/advisories/GHSA-vh2g-6c4x-5hmpenisa_euvd
- https://security.netapp.com/advisory/ntap-20230831-0004/enisa_euvd
- https://github.com/NodeBB/NodeBB/commit/ec58700f6dff8e5b4af1544f6205ec362b593092Patchnvd
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