CVE-2026-31876mediumCWE-79

CVE-2026-31876: falha de média gravidade em streetwriters notesnook

Notesnook has Stored XSS via unsanitized Twitter/X embed URL in editor (`tweetToEmbed`)

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar notesnook

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 5.4epss 0.2%
Notesnook is a note-taking app focused on user privacy & ease of use. Prior to 3.3.9, a Stored Cross-Site Scripting (XSS) vulnerability existed in Notesnook's editor embed component when rendering Twitter/X embed URLs. The tweetToEmbed() function in component.tsx interpolated the user-supplied URL directly into an HTML string without escaping, which was then assigned to the srcdoc attribute of an <iframe>. This vulnerability is fixed in 3.3.9.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Produtos afetados
streetwriters · notesnook
CVEs relacionadas — streetwriters notesnook

No mesmo produto, das mais perigosas para as menos.

CVE-2026-42090CRITICALNotesnook: RCE via stored XSS in note export renderingEPSS 0.5%CVE-2026-33978MEDIUMNotesnook: Stored XSS in mobile share editor via unescaped web clip title metadataEPSS 0.3%