CVE-2017-20290: fallo de gravedad media en Discourse
Discourse < 1.9.0.beta13 Reflected XSS via /email/unsubscribed
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
35Vexday Risk Score
Prioriza la corrección. Ella explotación observada por VulnCheck.
ssvc Attendcvss 5.1epss 0.3%
de la publicación al arma
Publicada en NVD22 oct
VulnCheck22 oct
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
Productos afectados
Discourse · DiscourseReferencias
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