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CVE-2026-102424— Joomla Extension - balbooa.com - Unauthenticated path traversal exfiltrates local files through auto-reply attachments in Balbooa Forms < 2.4.3.4

Quick assessment

Affected
balbooa.com Balbooa Forms extension for Joomla
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Joomla Extension - balbooa.com - Unauthenticated path traversal exfiltrates local files through auto-reply attachments in Balbooa Forms < 2.4.3.4 - Balbooa Forms accepts upload-field state as Guest-controlled JSON during public form submission. For every objec

CVSS 8.9 · High
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I. Basic Information for CVE-2026-102424

Vulnerability Information

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Vulnerability Title
Joomla Extension - balbooa.com - Unauthenticated path traversal exfiltrates local files through auto-reply attachments in Balbooa Forms < 2.4.3.4
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - balbooa.com - Unauthenticated path traversal exfiltrates local files through auto-reply attachments in Balbooa Forms < 2.4.3.4 - Balbooa Forms accepts upload-field state as Guest-controlled JSON during public form submission. For every object whose `id` merely looks numeric, the component trusts the supplied `filename`, concatenates it below the configured upload directory, and adds the result to an array of local attachment paths. It does not load the referenced attachment row, verify ownership/session/form/field, require that the ID exists, canonicalize the path, or enforce containment. If the form's normal “auto reply” and “attach uploaded files” options are enabled, the component sends those local paths as email attachments to the address submitted in an email field. A Guest can therefore submit a nonexistent numeric ID plus a traversal filename such as `../../../../configuration.php` and receive any file readable by the Joomla process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
balbooa.com Balbooa Forms extension for Joomla 1.0.0-2.4.3.3 -

II. Public POCs for CVE-2026-102424

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III. Intelligence Information for CVE-2026-102424

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Vendor Pages for CVE-2026-102424 (1)

Same Patch Batch · balbooa.com · 2026-09-29 · 5 CVEs total

CVE-2026-102425 9.5 CRITICAL Joomla Extension - balbooa.com - Unauthenticated RCE via field shortcode injection in Balb
CVE-2026-101127 8.6 HIGH Joomla Extension - balbooa.com - Unauthenticated upload filename stored XSS in Balbooa For
CVE-2026-101112 6.9 MEDIUM Joomla Extension - balbooa.com - Unauthorized Deletion of Attachments in Balbooa Forms < 2
CVE-2026-101126 6.9 MEDIUM Joomla Extension - balbooa.com - File meta data tampering in Balbooa Forms < 2.4.3.4

IV. Related Vulnerabilities

Same product: Balbooa Forms extension for Joomla
Same vendor: balbooa.com
Same weakness: CWE-22

V. Comments for CVE-2026-102424

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