PT-2026-121377 · Undefined · Undefined
CVE-2017-20290
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Publicado
2026-10-22
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Atualizado
2026-10-22
CVSS v3.1
6.1
Média
| Vetor | AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Discourse 1.9.0.beta2 before 1.9.0.beta13 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts through the email parameter of /email/unsubscribed. Attackers can craft GET requests with SVG onload payloads, which unsubscribed.html.erb renders unescaped via html safe, executing JavaScript in victims' browsers. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.
Correção
XSS
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