CVE Explorer
CVE-2026-16774
The Chatbot plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 8.5.9 via the wpcs_send_email() AJAX handler. This is due to the wpcs_send_email() function being registered on both wp_ajax_wpcs_send_email and wp_ajax_nopriv_wpcs_send_email with no nonce verification, capability check, or rate limiting, while forwarding attacker-controlled recipient, subject, and body directly to wp_mail(). This makes it possible for unauthenticated attackers to send arbi
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"WPBot – AI ChatBot for Live Support, Lead Generation, AI Services","vendor":"quantumcloud","versions":[{"lessThanOrEqual":"8.5.9","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"url":"https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.9/includes/chat-sessions/wpbot-chat-sessions.php#L478"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.9/includes/chat-sessions/wpbot-chat-sessions.php#L483"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/chatbot/tags/8.5.9/includes/chat-sessions/wpbot-chat-sessions.php#L494"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3621386%40chatbot&new=3621386%40chatbot"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/references/4
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/3cc6aa06-ab2a-4d5c-bbbe-4c19722ccc53?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a48f4af1a45f8afddcab7a55d7aba20fd6a43fedf084f7e31b94b8cf43496fb · sha256:a3ced0dbb6daa50d… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.