CVE-2026-0691

The CM E-Mail Blacklist – Simple email filtering for safer registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'black_email' parameter in all versions up to, and including, 1.6.2. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

• CWE-79

• https://plugins.trac.wordpress.org/browser/cm-email-blacklist/tags/1.6.2/backend/views/settings/email_blacklist.phtml#L67
• https://plugins.trac.wordpress.org/browser/cm-email-blacklist/trunk/backend/views/settings/email_blacklist.phtml#L67
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3440158%40cm-email-blacklist&new=3440158%40cm-email-blacklist&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/821f4ea9-bc25-4d65-9058-5b77c4f1b230?source=cve

Published

Jan 17, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-0685Server side template inject (SSTI) in the expression evaluat…9.8
• CVE-2026-0686The Webmention plugin for WordPress is vulnerable to Server-…7.2
• CVE-2026-0687The Meta-box GalleryMeta plugin for WordPress is vulnerable …4.3
• CVE-2026-0688The Webmention plugin for WordPress is vulnerable to Server-…6.4
• CVE-2026-0689In ExtremeCloud IQ – Site Engine (XIQ‑SE) before 26.2.10, a …4.9
• CVE-2026-0690The FlatPM – Ad Manager, AdSense and Custom Code plugin for …6.4
• CVE-2026-0692The BlueSnap Payment Gateway for WooCommerce plugin for Word…7.5
• CVE-2026-0693The Allow HTML in Category Descriptions plugin for WordPress…4.4
• CVE-2026-0694The SearchWiz plugin for WordPress is vulnerable to Stored C…6.4
• CVE-2026-0695In ConnectWise PSA versions older than 2026.1, Time Entry no…5.4
• CVE-2026-0696In ConnectWise PSA versions older than 2026.1, certain sessi…6.5
• CVE-2026-0697A flaw has been found in code-projects Intern Membership Man…7.2