PT-2026-3293 · Markright · Markright

Taurusomar · Publicado 2026-01-16 · Atualizado 2026-01-16 · CVE-2021-47838

Positive Technologies (AI Summary)

CVSS v3.1

7.2

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions Markright version 1.0

Description Markright is affected by a persistent cross-site scripting issue. Attackers can embed malicious payloads within markdown files. Uploading specially crafted markdown files allows execution of arbitrary JavaScript when the files are opened, potentially leading to remote code execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2021-47838

Produtos afetados

Markright

Referências · 7

• 🔥 https://vulncheck.com/advisories/markright-persistent-cross-site-scripting · Exploit
• 🔥 https://exploit-db.com/exploits/49834 · Exploit
• 🔥 https://imgur.com/a/VOsgKbZ · Exploit
• https://github.com/dvcrn/markright · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2021-47838 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2021-47838 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2012303206748143874 · Publicação no Twitter