CVE-2023-3348

Directory traversal vulnerability in Cloudflare Wrangler

MEDIUM
5.7
CVSS Score
Published: August 3, 2023 at 01:47 PM UTC
Updated: June 17, 2026 at 06:13 AM UTC
1 product affected across 1 vendorWrangler

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Severity
MEDIUM5.7
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.1.12 ≤ v < 2.20.13 ≤ v < 3.1.123
Affected range stops below 2.20.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.7MEDIUMcloudflare
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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