CVE-2026-65880: Joomla Extension - joomshaper.com - Unauthenticated remote code execution in Balbooa Forms < 2.4.3
Joomla Extension - balbooa.com - Unauthenticated remote code execution in Balbooa Forms < 2.4.3 - An insecure form processing logic allowed code execution for forms that include the signature field type.
Security readout for executives and security teams
Plain-English summary
Balbooa Forms for Joomla contains a critical flaw that may let an unauthenticated internet user execute code when a form includes the signature field. Successful exploitation could compromise the website, its data, and connected systems without user interaction.
Executive priority
Treat confirmed exposure as an immediate remediation priority. Internet-facing affected sites with signature-enabled forms should be upgraded or isolated urgently, followed by compromise assessment because exploitation could provide complete control without authentication.
Technical view
CVE-2026-65880 is a CWE-94 code-injection issue in insecure form-processing logic. Balbooa Forms versions 1.0.0 through 2.4.2.1 are listed as affected. Exploitation requires a form containing the signature field and is rated CVSS 4.0 10.0, with network access, low complexity, no privileges, and no interaction required.
Likely exposure
Exposure is highest for publicly reachable Joomla sites running an affected Balbooa Forms version with the signature field enabled. The supplied evidence does not establish whether other configurations are exploitable.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source confirms active exploitation or public exploit availability. Its unauthenticated, network-accessible design nevertheless warrants urgent action where the vulnerable form configuration exists.
Researcher notes
The supplied title names joomshaper.com, while the description and affected-product data identify balbooa.com; this discrepancy requires confirmation. Evidence specifies the vulnerable condition and version range but provides no detailed advisory, exploit telemetry, indicators, or explicit forensic guidance. The listed package name, com_bagallery, should also be validated during inventory.
Mitigation direction
Upgrade Balbooa Forms to version 2.4.3 or later after confirming vendor guidance and compatibility.
Until upgraded, disable or remove forms containing the signature field.
Restrict public access to affected forms where operationally feasible.
Review the vendor product page and CVE record for updated remediation guidance.
Validation and detection
Inventory Joomla sites and identify installed Balbooa Forms versions.
Confirm whether affected sites contain forms using the signature field.
Verify upgraded installations report version 2.4.3 or later.
Review web, application, and host logs for unusual form-processing activity or unexpected code execution.
Confirm previously exposed forms and hosts show no unauthorized changes.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
1CVSS vectors
3Timeline events
1ADP providers
2Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-94 · source CWE mapping
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.