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CVE-2023-3348

16
FAUCET Score

CVE-2023-3348 is a directory traversal vulnerability affecting Cloudflare's Wrangler command-line tool (versions <=3.1.0 and <=2.20.1) when running a local development server for Pages. An attacker on the same network as the victim could exploit this to access files outside the development server's directory. Rated Medium severity (CVSS 5.7), this vulnerability requires network access and user interaction, potentially leading to high confidentiality impact by exposing sensitive files. There is no impact on integrity or availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.1CPE matchmatch criteria
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*
>= 2, < 2.20.1CPE match
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*
>= 3, < 3.1.1CPE match
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 90th percentile among its peer group of 126 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

npmpatch availablevia ghsa
Product: wranglerFixed in: 2.20.1
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-8c93-4hch-xgxpmedium

Cloudflare Wrangler directory traversal vulnerability

Aug 3, 2023

References

developers.cloudflare.com / workers/wrangler
Product
github.com / cloudflare/workers-sdk
Product
github.com / cloudflare/workers-sdk/security/advisories/GHSA-8c93-4hch-xgxp
Vendor Advisory