CVE-2026-56291 (GCVE-0-2026-56291)
Vulnerability from cvelistv5 – Published: 2026-07-09 09:53 – Updated: 2026-07-10 19:58Title
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
Summary
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.balbooa.com/joomla-forms | product |
| https://mysites.guru/blog/balbooa-forms-unauthent… | third-party-advisory |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| balbooa.com | balbooa.com Balbooa Forms extension for Joomla |
Affected:
1.0-2.4.0
|
Credits
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 2441e572-031d-4f21-a37b-f97ea742bf70
Exploited: Yes
Timestamps
First Seen: 2026-07-10
Asserted: 2026-07-10
Scope
Notes: Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability | Affected: Balbooa / Forms | Description: Balbooa Forms contains an unrestricted upload of file with dangerous type vulnerability that allows an unauthenticated arbitrary file upload which could allow uploading of executable files leading to full RCE. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-07-13 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.balbooa.com/joomla-forms ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-56291
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-434 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Forms |
| Due Date | 2026-07-13 |
| Date Added | 2026-07-10 |
| Vendorproject | Balbooa |
| Vulnerabilityname | Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-07-10 18:00 UTC
| Updated: 2026-07-10 18:00 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7f8175a4-d002-4926-ad93-9c4b5f79efc9
Exploited: Yes
Timestamps
First Seen: 2026-07-10
Asserted: 2026-07-10
Scope
Notes: Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 | Affected: balbooa.com / balbooa.com Balbooa Forms extension for Joomla | CVSS: 10.0 (CRITICAL) | EPSS: 0.00278 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 |
| Vendor | balbooa.com |
| Product | balbooa.com Balbooa Forms extension for Joomla |
| Added Date | 2026-07-10T17:00:25.732Z |
| Cvss Score | 10.0 |
| Epss Score | 0.00278 |
| Cvss Severity | CRITICAL |
| Epss Percentile | 0.19623 |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-07-10 18:00 UTC
| Updated: 2026-07-10 18:00 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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