CVE-2026-102784: CWE-352 Cross-Site Request Forgery (CSRF) in balbooa.com Gridbox extension for Joomla
Description
Joomla Extension - balbooa.com - CSRF in language installation feature Gridbox < 2.20.4.0 - PagesController uses a trait that validates the Joomla session token only when the HTTP method is POST. addLanguage does not require POST inside the action and reads url and zip through the generic request input. A GET request can therefore reach the action without the trait checking a token. The action still requires core.tools , but that is the victim’s permission check; it does not prove that the privileged user intended the request.
CVSS v4.0
Score 8.7high
Affected software
balbooa.com
Gridbox extension for Joomla
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-102784 is a CSRF vulnerability in the balbooa.com Gridbox extension for Joomla (versions 1.0.0 to 2.20.3.1). The PagesController uses a trait that validates the Joomla session token only for POST requests. However, the addLanguage action does not enforce the POST method and accepts parameters via generic request input, allowing a GET request to bypass token validation. This flaw permits an attacker to perform unauthorized language installation actions if the victim has the required core.tools permission, without the victim's explicit intent.
Potential Impact
An attacker can exploit this vulnerability to perform unauthorized actions related to language installation in the Gridbox extension by tricking a privileged user into making a crafted GET request. This could lead to unauthorized modifications within the Joomla site, potentially impacting site integrity or functionality. The vulnerability requires the victim to have core.tools permission, limiting exploitation to users with this privilege.
Mitigation Recommendations
No official patch or remediation information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to users with core.tools permission and avoid clicking on untrusted links that could trigger GET requests to the vulnerable action.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-09-29T16:46:15.045Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac7914f2cdf04f6561533c7
Added to database: 10/08/2026, 12:49:19 UTC
Last enriched: 10/08/2026, 13:03:34 UTC
Last updated: 10/08/2026, 14:34:22 UTC
Views: 9
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