CVE-2017-20290: falha de média gravidade em Discourse
Discourse < 1.9.0.beta13 Reflected XSS via /email/unsubscribed
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
35Vexday Risk Score
Priorize a correção. Ela exploração observada pelo VulnCheck.
ssvc Attendcvss 5.1epss 0.3%
da publicação à arma
Publicada no NVD22 de out.
VulnCheck22 de out.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Produtos afetados
Discourse · DiscourseReferências
https://github.com/discourse/discourse/commit/6e37f09b19https://github.com/discourse/discourse/commit/a6f2533d38https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/discourse-xss.yamlhttps://www.vulncheck.com/advisories/discourse-1.9.0-beta13-reflected-xss-via-email-unsubscribed