CVE-2026-65319: Feedbin Feedbin advisory

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

What it is

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.

Description quoted from the CVE record (assigned by VulnCheck, published 2026-07-21).

Weakness: Missing Authentication for Critical Function

How it can be exploited

Exploitable over the network with low attack complexity with no special attack requirements needing no privileges and no user interaction. Impact: confidentiality high, integrity none, availability none. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CISA assessment (SSVC): CISA assesses that a public proof of concept exists. Automatable: yes. Technical impact: partial.

Public exploit evidence (Exploit Observer)

Also known as: EUVD-2026-47563, GHSA-625r-xrww-9rxq

VEDAS cluster: VEDAS:CRYSTALGANTE

Exploit Observer links 5 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (5)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Vulnerability databases and vendor advisories (3)

Catalogue entries, not exploit evidence.

Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2026-47563
Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-625r-xrww-9rxq
Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-65319

2 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS: 0.005
low predicted chance of attack
VEDAS: 0.986
strong exploit evidence
On CISA KEV: Not listed
Detection rule: Nuclei · Suricata

Who is affected

Product	Affected	Not affected
Feedbin Feedbin	up to and including 739884a (git commit)	Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

How to fix it

Vendor guidance:

Patch Commit (product, patch)

How to detect it

Nuclei template (active check)

Feedbin - Unauthenticated Article Text Disclosure
Feedbin (commit 739884a) contains an unauthenticated information disclosure vulnerability: the entries text API endpoint skips the authorization before-action filter entirely. An unauthenticated attacker can iterate sequential integer entry IDs through GET /v2/entries/:id/text to enumerate and extract the plain-text content of all stored articles, including private newsletter and page-saved content. This template confirms the flaw non-destructively by requesting the text endpoint for an entry without authentication.

Name and description quoted from the template, written by VEDAS.

The template sends 2 requests (GET /v2/entries/1/text.json, GET /api/v2/entries/1/text); it decides using dsl matchers. Severity in the template: high. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash

nuclei -u https://your-host -t CVE-2026-65319.yaml

Show the template (40 lines)

yaml

id: CVE-2026-65319

info:
  name: "Feedbin - Unauthenticated Article Text Disclosure"
  author: vedas-arpsyndicate
  severity: high
  description: |
    Feedbin (commit 739884a) contains an unauthenticated information disclosure vulnerability: the
    entries text API endpoint skips the authorization before-action filter entirely. An
    unauthenticated attacker can iterate sequential integer entry IDs through
    GET /v2/entries/:id/text to enumerate and extract the plain-text content of all stored
    articles, including private newsletter and page-saved content. This template confirms the flaw
    non-destructively by requesting the text endpoint for an entry without authentication.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-65319&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=feedbin&match=exact
  classification:
    cvss-metrics: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    cvss-score: 8.7
    cve-id: CVE-2026-65319
    cwe-id: CWE-306
  metadata:
    verified: false
    max-request: 2
  tags: cve,cve2026,feedbin,missing-auth,unauth

http:
  - method: GET
    path:
      - "{{BaseURL}}/v2/entries/1/text.json"
      - "{{BaseURL}}/api/v2/entries/1/text"
    stop-at-first-match: true
    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains(body, "\"content\"")'
        condition: and

CVE-2026-65319.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2026-65319 Feedbin - Unauthenticated Article Text Disclosure Attempt. Add them to your Suricata rule set and reload.

Show the rules

suricata

alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-65319 Feedbin - Unauthenticated Article Text Disclosure Attempt"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/v2/entries/"; fast_pattern; nocase; content:"/text"; distance:0; nocase; classtype:web-application-attack; reference:cve,CVE-2026-65319; reference:url,https://www.exploit.observer/?keyword=CVE-2026-65319&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=feedbin&match=exact; sid:1081608; rev:1;)

CVE-2026-65319.rules on GitHub

References

Vendor advisories and patches

Patch Commit (product, patch)

Exploits and technical analysis

https://www.vulncheck.com/advisories/feedbin-unauthenticated-entry-content-disclosure-via-get-api-v2-entries-id-text (third-party-advisory)

Other references

Public Disclosure
Product (product)

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.