Joomla Güvenlik Duyuruları

• [20260301] - Core - ACL hardening in com_ajax

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Probability: Moderate
  • Versions: 3.0.0-5.4.3, 6.0.0-6.0.3
  • Exploit type: Incorrect Access Control
  • Reported Date: 2026-03-11
  • Fixed Date: 2026-03-31
  • CVE Number: CVE-2026-21629

  Description

  The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.

  Affected Installs

  Joomla! CMS versions 3.0.0-5.4.3, 6.0.0-6.0.3

  Solution

  Upgrade to version 5.4.4 or 6.0.4

  Contact

  The JSST at the Joomla! Security Centre.

  Reported By:  JSST

• [20260302] - Core - SQL injection in com_content articles webservice endpoint

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Probability: Moderate
  • Versions:4.0.0-5.4.3, 6.0.0-6.0.3
  • Exploit type: SQLi
  • Reported Date: 2026-03-05
  • Fixed Date: 2026-03-31
  • CVE Number: CVE-2026-21630

  Description

  Improperly built order clauses lead to a SQL injection vulnerability in the articles webservice endpoint.

  Affected Installs

  Joomla! CMS versions 4.0.0-5.4.3, 6.0.0-6.0.3

  Solution

  Upgrade to version 5.4.4 or 6.0.4

  Contact

  The JSST at the Joomla! Security Centre.

  Reported By:  Antonio Morales from GitHub Security Lab Taskflow Agent / vnth4nhnt from CyStack

• [20260303] - Core - XSS vector in com_associations comparison view

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Moderate
  • Probability: Low
  • Versions:4.0.0-5.4.3, 6.0.0-6.0.3
  • Exploit type: XSS
  • Reported Date: 2026-03-11
  • Fixed Date: 2026-03-31
  • CVE Number: CVE-2026-21631

  Description

  Lack of output escaping leads to a XSS vector in the multilingual associations component

  Affected Installs

  Joomla! CMS versions 4.0.0-5.4.3, 6.0.0-6.0.3

  Solution

  Upgrade to version 5.4.4 or 6.0.4

  Contact

  The JSST at the Joomla! Security Centre.

  Reported By:  Shirsendu Mondal & Md Tanzimul Alam Fahim, UNC Pembroke

• [20260304] - Core - XSS vectors in various article title outputs

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Moderate
  • Probability: Low
  • Versions:4.0.0-5.4.3, 6.0.0-6.0.3
  • Exploit type: XSS
  • Reported Date: 2026-03-10
  • Fixed Date: 2026-03-31
  • CVE Number: CVE-2026-21632

  Description

  Lack of output escaping for article titles leads to XSS vectors in various locations.

  Affected Installs

  Joomla! CMS versions 4.0.0-5.4.3, 6.0.0-6.0.3

  Solution

  Upgrade to version 5.4.4 or 6.0.4

  Contact

  The JSST at the Joomla! Security Centre.

  Reported By:  peter vanderhulst

• [20260305] - Core - Arbitrary file deletion in com_joomlaupdate

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: High
  • Probability: Low
  • Versions:4.0.0-5.4.3, 6.0.0-6.0.3
  • Exploit type: Arbitrary File Deletion
  • Reported Date: 2026-03-16
  • Fixed Date: 2026-03-31
  • CVE Number: CVE-2026-23898

  Description

  Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.

  Affected Installs

  Joomla! CMS versions 4.0.0-5.4.3, 6.0.0-6.0.3

  Solution

  Upgrade to version 5.4.4 or 6.0.4

  Contact

  The JSST at the Joomla! Security Centre.

  Reported By:  Phil Taylor