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Joomla! vulnerabilities

340 known vulnerabilities, 2 confirmed exploited in the wild (CISA KEV), 71 published in the last 12 months.

Check whether your Joomla! version is affected

Exploited Joomla! vulnerabilities

• CVE-2016-10033 — PHPMailer Command Injection Vulnerability
• CVE-2023-23752 — Joomla! Improper Access Control Vulnerability

Latest Joomla! vulnerabilities

• CVE-2026-92232 — Joomla! Core - [20260916] - Core - XSS filter bypass in InputFilter via whitespace characters in HTML data URIs in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.5)
• CVE-2026-92231 — Joomla! Core - [20260915] - Core - XSS filter bypass in InputFilter via HTML5 entity decode mismatch in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.7)
• CVE-2026-92227 — Joomla! Core - [20260914] - Core - MFA Authentication Bypass through rememberme cookies in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 7.5)
• CVE-2026-92226 — Joomla! Core - [20260913] - Core - Improper ACL checks for varous webservice edit tasks in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.0)
• CVE-2026-92225 — Joomla! Core - [20260912] - Core - XSS in module list in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.7)
• CVE-2026-92224 — Joomla! Core - [20260911] - Core - XSS in link toolbar layout in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.7)
• CVE-2026-92223 — Joomla! Core - [20260910] - Core - Improper ACL checks for workflow stage changes in Joomla 5.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 3.8)
• CVE-2026-92222 — Joomla! Core - [20260909] - Core - SSRF vectors in various core extensions in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 8.0)
• CVE-2026-90918 — Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 5.3)
• CVE-2026-90917 — Joomla! Core - [20260907] - Core - Improper ACL checks in outputs for tagged items in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 5.3)
• CVE-2026-90916 — Joomla! Core - [20260906] - Core - Improper ACL checks in content history comparison view in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 2.7)
• CVE-2026-90915 — Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.5)
• CVE-2026-90914 — Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 6.4)
• CVE-2026-90913 — Joomla! Core - [20260903] - Core - Improper ACL checks for access level webservice endpoints in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 (CVSS 5.5)
• CVE-2026-90907 — Joomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 (CVSS 5.3)
• CVE-2026-90906 — Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 (CVSS 8.3)
• CVE-2026-73372 — Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 and 6.0.0-6.1.2 (CVSS 4.3)
• CVE-2026-73336 — Joomla! Core - [20260806] - XSS through schema.org outputs in Joomla 5.1.0-5.4.7, 6.0.0-6.1.2 (CVSS 6.4)
• CVE-2026-72531 — Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 5.4)
• CVE-2026-71573 — Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 8.3)
• CVE-2026-71572 — Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 5.4)
• CVE-2026-73373 — Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 9.8)
• CVE-2026-73371 — Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 4.3)
• CVE-2026-73337 — Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 (CVSS 7.5)
• CVE-2026-72532 — Joomla! Core - [20260805] - Improper ACL checks for category webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 (CVSS 5.4)