Auth bypass in Cloudflare Wrangler
CVE-2023-7079
Sending specially crafted HTTP requests and inspector messages to Wrangler's dev server could result in any file on the user's computer being accessible over the local network. An attacker that could trick any user on the local network into opening a malicious website could also read any file.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (51.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Cloudflare Wrangler — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/cloudflare/workers-sdk/security/advisories/GHSA-cfph-4qqh-w828 (Patch, Third Party Advisory)
- github.com/cloudflare/workers-sdk/pull/4532 (Patch)
- github.com/cloudflare/workers-sdk/pull/4535 (Patch)
Frequently asked questions
- What is CVE-2023-7079?
- CVE-2023-7079 is a medium-severity vulnerability in Cloudflare Wrangler, classified under Improper Authentication. CVSS score: 6.4/10. Published 2023-12-29.
- How severe is CVE-2023-7079?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2023-7079 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.