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.
CVE-2023-26045
This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 33% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 10.0
- EG Score
- 10.0(medium)
- EPSS
- 53.6%
- KEV
- Not listed
Published
July 24, 2023
Last Modified
November 21, 2024
Advisory Details (3)
Auto-updated Jul 11, 2026Path traversal and code execution via prototype vulnerability · Advisory · NodeBB/NodeBB · GitHub
Affected: v2.8.7
https://github.com/NodeBB/NodeBB/security/advisories/GHSA-vh2g-6c4x-5hmpcommit ec58700f6dff (NodeBB/NodeBB)
Patch available: NodeBB/NodeBB v4.4.6 (contains commit ec58700f6dff)
https://github.com/NodeBB/NodeBB/commit/ec58700f6dff8e5b4af1544f6205ec362b593092Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| nodebb | — | 2.8.7 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 50× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2023-26045?
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How do I remediate CVE-2023-26045?
Dependency Blast Radius
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