Auth bypass in Feedbin
CVE-2026-65319
Feedbin (commit 739884a) contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to retrieve private article content by sending requests to the entries text API endpoint, which skips the authorization before-action filter entirely. Attackers can iterate sequential integer entry IDs through the GET /api/v2/entries/:id/text endpoint to enumerate and extract plain-text content of all stored articles, including private newsletter content, personal page-saves, and articles from any user's private subscriptions.
Vulnerability class: Broken Authentication
EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Feedbin — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com
- disclosure@vulncheck.com (product, patch)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-65319?
- CVE-2026-65319 is a high-severity vulnerability in Feedbin, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-07-21.
- How severe is CVE-2026-65319?
- High severity. CVSS v3 base score is 7.5 out of 10.