The Wrangler command line tool (<[email protected] or <[email protected]) was affected by a directory traversal vulnerability when running a local development server for Pages (wrangler pages dev command). This vulnerability enabled an attacker in the same network as the victim to connect to the local development server and access the victim's files present outside of the directory for the development server.
CVE-2023-3348
This medium-severity CVE scores 5.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 52% 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.7
- EG Score
- 5.7(medium)
- EPSS
- 48.9%
- KEV
- Not listed
Published
August 3, 2023
Last Modified
November 21, 2024
References (6)
- cna@cloudflarehttps://developers.cloudflare.com/workers/wrangler/
- cna@cloudflarehttps://github.com/cloudflare/workers-sdk
- cna@cloudflarehttps://github.com/cloudflare/workers-sdk/security/advisories/GHSA-8c93-4hch-xgxp
- af854a3a-2127-422b-91ae-364da2661108https://developers.cloudflare.com/workers/wrangler/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/cloudflare/workers-sdk
- af854a3a-2127-422b-91ae-364da2661108https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-8c93-4hch-xgxp
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wrangler | — | 2.20.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 49× 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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- 2026-05-24 20:11 UTCEG score recompute
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Frequently asked(5)
What is CVE-2023-3348?
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Dependency Blast Radius
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