PT-2026-56541 · Web Infra Dev · Midscene

George Chen · Publicado 2026-07-08 · Atualizado 2026-07-08 · CVE-2026-59804

Mitre

CVSS v3.1

6.8

Média

Vetor base

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Midscene Bridge Server through 1.10.3, fixed in commit 86f4118, contains a missing authentication and CORS misconfiguration vulnerability that allows unauthenticated remote attackers to hijack active bridge sessions by opening a cross-origin WebSocket connection to the local Socket.IO server, which performs no Origin header validation and requires no authentication token. Attackers can connect from any web page visited by the victim to seize the single-client slot, intercept and inject automation commands, exfiltrate command-payload data, or unconditionally terminate the server by supplying the MIDSCENE BRIDGE SIGNAL KILL query parameter.

Exploit

Correção

Missing Authentication

Enumeração de Fraquezas

CWE-306

CWE-1385

Identificadores relacionados

CVE-2026-59804

Produtos afetados

Midscene

Referências · 5

• 🔥 https://github.com/web-infra-dev/midscene/issues/2752 · Exploit
• https://github.com/web-infra-dev/midscene/pull/2759 · Nota
• https://github.com/web-infra-dev/midscene/commit/86f4118d1d847041c63d79e347e08c87c3f1a882 · Correção
• https://vulncheck.com/advisories/midscene-bridge-server-session-hijack-via-unauthenticated-websocket · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-59804 · Nota de Segurança