{"id":82644,"date":"2026-07-28T23:47:27","date_gmt":"2026-07-28T20:17:27","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-57511-superplane-0-30-0-smtp-header-injection-via-webhook-event-title\/"},"modified":"2026-07-28T23:47:27","modified_gmt":"2026-07-28T20:17:27","slug":"cve-2026-57511-superplane-0-30-0-smtp-header-injection-via-webhook-event-title","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-57511-superplane-0-30-0-smtp-header-injection-via-webhook-event-title\/","title":{"rendered":"CVE-2026-57511 &#8211; SuperPlane &lt; 0.30.0 SMTP Header Injection via Webhook Event Title"},"content":{"rendered":"<p>CVE ID :CVE-2026-57511<\/p>\n<p>  Published : July 28, 2026, 8:17 p.m. | 23\u00a0minutes ago<\/p>\n<p>  Description :SuperPlane before 0.30.0 contains an SMTP header injection vulnerability that allows unauthenticated attackers to inject arbitrary SMTP headers by including CRLF sequences in the event payload title field delivered via webhook. Attackers can manipulate the unsanitized title field passed to the SMTP DATA command to add Bcc recipients for content exfiltration, forge the From address to bypass SPF and DKIM checks, or inject Content-Type and MIME boundary headers to corrupt message bodies for phishing.<\/p>\n<p>  Severity: 6.3 | MEDIUM<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-57511 Published : July 28, 2026, 8:17 p.m. | 23\u00a0minutes ago Description :SuperPlane before 0.30.0 contains an SMTP header injection vulnerability that allows unauthenticated attackers to inject arbitrary SMTP headers by including CRLF sequences in the event payload title field delivered via webhook. Attackers can manipulate the unsanitized title field passed to the &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-82644","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=82644"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82644\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}