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CVE-2021-47838

HIGH

7.2

Descripcion

Markright 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to embed malicious payloads in markdown files. Attackers can upload specially crafted markdown files that execute arbitrary JavaScript when opened, potentially enabling remote code execution on the victim's system.

Detalles CVE

Puntuacion CVSS v3.17.2

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/16/2026

Ultima modificacion1/26/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-79

Referencias

https://github.com/dvcrn/markright(disclosure@vulncheck.com)

https://imgur.com/a/VOsgKbZ(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49834(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/markright-persistent-cross-site-scripting(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/markright-persistent-cross-site-scripting(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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