Auth bypass in Munafio Chatify
CVE-2026-120425
Chatify before 1.6.4 contains an authorization bypass vulnerability in the Pusher channel authorization endpoint that allows authenticated users to subscribe to other users' private channels by supplying arbitrary channel names. Attackers can request a signature for private-chatify.<victim id> via POST /chat/auth to receive the victim's incoming private messages and attachments in real time.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/munafio/chatify/issues/412 (issue-tracking)
- github.com/munafio/chatify/commit/e16bdb197d227aa2a66863c166bbb31c5f45bc2a (patch)
- github.com/munafio/chatify/releases/tag/v1.6.4 (release-notes)
- github.com/munafio/chatify/blob/v1.6.3/src/ChatifyMessenger.php (technical-description)
- hackmd.io/@hieund/chatify-pusher-channel-authorization-bypass (technical-description)
- www.vulncheck.com/advisories/chatify-before-1.6.4-pusher-authorization-bypass-v… (third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2026-120425?
- CVE-2026-120425 is a medium-severity vulnerability in Munafio Chatify, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-11-02.
- How severe is CVE-2026-120425?
- Medium severity. CVSS v3 base score is 6.5 out of 10.