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CVE Record

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.

CriticalCVSS 10Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

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.
Prepared
Confidence
medium
Sources
3

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.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-65880 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (4.0)
Known Exploited
No
Published

Vector: 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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HJoomla

Vulnerability scoring details

Base CVSS 4.0 score

10Critical
CVSS 4.0 vector shape for CVE-2026-65880Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: 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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
balbooa.comBalbooa Forms component for Joomlacom_bagallery, 1.0.0-2.4.2.1unaffected
Weakness

CWE details

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.