CVE-2026-71574 Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2

Joomla! Core - 20260803 - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI...

CVE-2026-71574 Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2

Joomla! Core - 20260803 - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI...

EUVD-2026-61025

Joomla! Core - 20260803 - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI...

CVE-2026-71574

Joomla! 4.0.0-5.4.7 and 6.0.0-6.1.2 have inconsistent ACL checks on webservice endpoints, allowing authenticated users with high privileges to perform mutating actions that are restricted in the backend UI. CVSS 8.5 (HIGH) reflects confidentiality and integrity impact. No patch version is specifi...

CVE-2026-71574

Joomla! Core - 20260803 - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI...

PT-2026-77195

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description Improper Access Control List ACL checks in category webservice endpoints allow unauthorized users to create categories. ACL is a mechanism used to...

PT-2026-77198

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description An improper access control check allows unauthorized users to perform batch copy operations on items that should be uneditable. Access Control List...

Joomla 1.0.x < 5.4.8 / 6.0.x < 6.1.3 Joomla 6.1.3 & 5.4.8 Security & Bugfix Release (joomla-6-1-3-5-4-8-security-bugfix-release)

According to its self-reported version, the instance of Joomla! running on the remote web server is 1.0.x prior to 5.4.8 or 6.0.x prior to 6.1.3. It is, therefore, affected by a vulnerability. - Joomla! Core - 20260810 - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 - The...

PT-2026-77194

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description Improper Access Control List ACL checks in custom fields webservice endpoints allow unauthorized users to create fields for components they should...

PT-2026-77192

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description An improper implementation of Cross-Origin Resource Sharing CORS prevents configured origins from being properly validated during CORS requests. CO...

PT-2026-77200

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 1.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description The software fails to include SHTML files in its default list of dangerous files, allowing unrestricted uploads of these files. On servers configur...

PT-2026-77197

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description Insufficient state checks create a vector that allows an attacker to bypass Multi-Factor Authentication MFA checks, which are used to verify a user...

PT-2026-77196

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 5.1.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description Improper escaping flags in schema.org markup outputs create a Cross-Site Scripting XSS vector. XSS is a security flaw that allows an attacker to...

PT-2026-77191

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 3.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description Lack of output processing in multiple download views allows for response header injection. This issue can lead to reflected file download or...

PT-2026-77199

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 5.1.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description An improper access control check allows the injection of contact information for inaccessible contact items into schema.org snippets. Access Contro...

PT-2026-77193

Name of the Vulnerable Software and Affected Versions Joomla! Core versions 4.0.0 through 5.4.7 Joomla! Core versions 6.0.0 through 6.1.2 Description An improper access check allows unauthorized users to perform mutation actions in webservice endpoints. This occurs because the Access Control List...

CVE-2026-74254

Joomla Extension - joomlack.fr - SQL injection in Page Builder CK 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a SQL injection issue related to the styles model. Version 3.6.4 fixed the vector in the frontend, 3.6.5 in the backend...

CVE-2026-74253

Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer 16.0.0 - Regular Labs Sourcerer before 16.0.0 processes source blocks found in Joomla’s final rendered HTML without reliably determining where that code originated...

CVE-2026-74253

Regular Labs Sourcerer before 14.0.0 processes {source} blocks in Joomla's final rendered HTML without verifying origin, allowing unauthenticated remote code execution (CVSS 10.0). CIRCL sightings confirm published proof-of-concept code on Telegram; upgrading to Sourcerer 14.0.0 or later is the r...

CVE-2026-74253 Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer < 16.0.0

Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer 16.0.0 - Regular Labs Sourcerer before 16.0.0 processes source blocks found in Joomla’s final rendered HTML without reliably determining where that code originated...