EUVD-2026-62397
GHSA-m4fm-3x35-xqfq
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Unauthenticated network RCE with no user interaction and an anonymously-disclosed CSRF token gives PR:N/UI:N/AC:L; code runs within the server process so S:U with full C:H/I:H/A:H.
Primary rating from Vendor (joomla).
CVSS VectorVendor: joomla
Lifecycle Timeline
2DescriptionCVE.org
Joomla Extension - balbooa.com - Pre-auth PHP Code Injection in Balbooa Forms < 2.4.3.2 - CWE-94 / CWE-95 | CVSS 3.1: 9.8 Critical (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) The form's optional custom-PHP post-submission handler is executed via eval(). The [URL parameter = X] shortcode is substituted with the raw, unescaped value of a query parameter, letting an unauthenticated attacker inject arbitrary PHP that executes server-side. The CSRF token needed to reach the endpoint is itself disclosed anonymously via a separate task, so it provides no real protection. Exploitability requires the form to have a custom-PHP handler configured (a documented builder feature) referencing that shortcode, and no reCAPTCHA on the submit button.
AnalysisAI
Pre-authentication PHP code injection in Balbooa Forms, a commercial Joomla form-builder extension, in all versions before 2.4.3.2 lets a remote unauthenticated attacker run arbitrary server-side code. The flaw stems from the optional custom-PHP post-submission handler being executed through eval() after the [URL parameter = X] shortcode is replaced with the raw, unescaped value of an attacker-controlled query parameter. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target Joomla site to have a Balbooa Forms form (version < 2.4.3.2) whose custom-PHP post-submission handler is configured and references the [URL parameter = X] shortcode - this documented builder feature is the exact prerequisite, and forms without such a handler are not exploitable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This scores at the top of both scales - CVSS 3.1 9.8 and CVSS 4.0 10.0 - driven by AV:N/AC:L/PR:N/UI:N with high confidentiality, integrity, and availability impact, i.e. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: 2.4.3.2 - upgrade Balbooa Forms to 2.4.3.2 or later immediately via the vendor at https://www.balbooa.com/ and the Joomla extension update channel. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Joomla instances running Balbooa Forms and identify current versions; determine which instances have custom PHP post-submission handlers configured; disable this feature immediately in all instances where it is not actively required for documented business use. …
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External POC / Exploit Code
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