EUVD-2026-77426
GHSA-r2gr-75qm-qf6m
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/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
Network-reachable with no auth or special conditions; integrity and availability impacts are limited to CAPTCHA defeat enabling form abuse, no confidentiality loss.
Primary rating from Vendor (Joomla).
CVSS VectorVendor: Joomla
Lifecycle Timeline
1DescriptionCVE.org
Joomla Extension - joomshaper.com - Unauthenticated CAPTCHA Bypass in Module Context in the Contact, Opt-in and Form Builder Addons in SP Page Builder Pro 3.2.6 - 6.9.0 - In the ajax_contact, optin_form and form_builder addons, the result returned by the CAPTCHA plugin's onCheckAnswer event was discarded and replaced with a test for a non-empty string whenever the request-supplied view_type parameter equalled module. Submitting view_type=module together with any arbitrary token value therefore passed verification. This affected every instance of these addons placed inside an SP Page Builder module, irrespective of the CAPTCHA type configured for the site, and the view_type parameter was never validated against the context in which the form was actually rendered.
AnalysisAI
CAPTCHA verification in SP Page Builder Pro's Contact, Opt-in, and Form Builder addons can be defeated on any Joomla site running versions 3.2.6 through 6.9.0 by submitting the parameter view_type=module alongside any non-empty token string. The addon silently discards the CAPTCHA plugin's actual onCheckAnswer verification result and substitutes a trivially-satisfied non-empty-string check whenever this attacker-controlled parameter is present, rendering all configured CAPTCHA types ineffective for forms placed inside SP Page Builder modules. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The bypass requires that the target site runs SP Page Builder Pro in the version range 3.2.6-6.9.0 and has at least one of the three affected addons (ajax_contact, optin_form, or form_builder) deployed with a CAPTCHA requirement inside an SP Page Builder module. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 6.9 (AV:N/AC:L/AT:N/PR:N/UI:N) accurately reflects the zero-barrier nature of exploitation - no authentication, no race condition, no special configuration beyond using an affected addon. … 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 | Upgrade SP Page Builder Pro to a version above 6.9.0 containing the vendor's fix; the exact patched release version is not independently confirmed in the available references - consult the vendor's product page at https://www.joomshaper.com/joomla-extensions/sp-page-builder-pro for the current release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today