CVE-2026-120425
Chatify before 1.6.4 Pusher Authorization Bypass via /chat/auth Endpoint
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Chatify munafio munafio/chatify
composer |
≥ 0; < 1.6.4 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.1 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CNA: VulnCheck |
Exploit evidence
- https://hackmd.io/@hieund/cve-2026-120425-chatify-pusher-channel-authorization-bypass
exploit · ADP: CISA-ADP
References
- https://github.com/munafio/chatify/issues/412CNA: VulnCheck · issue-tracking
- https://github.com/munafio/chatify/commit/e16bdb197d227aa2a66863c166bbb31c5f45bc2aCNA: VulnCheck · patch
- https://github.com/munafio/chatify/releases/tag/v1.6.4CNA: VulnCheck · release-notes
- https://github.com/munafio/chatify/blob/v1.6.3/src/ChatifyMessenger.php#L101-L124CNA: VulnCheck · technical-description
- https://hackmd.io/@hieund/chatify-pusher-channel-authorization-bypassCNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/chatify-before-1.6.4-pusher-authorization-bypass-via-chat-auth-endpointCNA: VulnCheck · third-party-advisory
- https://hackmd.io/@hieund/cve-2026-120425-chatify-pusher-channel-authorization-bypassADP: CISA-ADP · exploit
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