{"id":"CVE-2026-56291","aliases":["EUVD-2026-42573","GHSA-28f5-j5p5-xmmw"],"status":"published","title":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1","description":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","severity":{"version":"4.0","score":10,"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/E:A/AU:Y/U:Red","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.14854,"percentile":0.96736,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-434"],"published":"2026-07-09T09:53:57Z","modified":"2026-10-25T17:10:00Z","kev":{"date_added":"2026-07-10","due_date":"2026-07-13","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.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-07-10"},{"source":"kev","since":"2026-07-10"}],"exploits":[{"source":"pocgithub","id":"shinthink/CVE-2026-56291","title":"shinthink/CVE-2026-56291","date":"2026-07-11","url":"https://github.com/shinthink/CVE-2026-56291"},{"source":"pocgithub","id":"0xdenis77/CVE-2026-56291","title":"0xdenis77/CVE-2026-56291","date":"2026-07-13","url":"https://github.com/0xdenis77/CVE-2026-56291"},{"source":"pocgithub","id":"rimbadirgantara/CVE-2026-56291.yaml","title":"rimbadirgantara/CVE-2026-56291.yaml","date":"2026-07-13","url":"https://github.com/rimbadirgantara/CVE-2026-56291.yaml"},{"source":"pocgithub","id":"ChiefYoru/CVE-2026-56291_PoC","title":"ChiefYoru/CVE-2026-56291_PoC","date":"2026-07-18","url":"https://github.com/ChiefYoru/CVE-2026-56291_PoC"},{"source":"pocgithub","id":"theendofabbys/CVE-2026-56291","title":"theendofabbys/CVE-2026-56291","date":"2026-10-08","url":"https://github.com/theendofabbys/CVE-2026-56291"},{"source":"nuclei","id":"CVE-2026-56291","title":"Balbooa Forms \u003c 2.4.1 - Unauthenticated Arbitrary File Upload","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-56291.yaml"}],"products":[{"vendor":"balbooa","product":"forms"},{"vendor":"balbooa.com","product":"balbooa.com balbooa forms extension for joomla"}],"references":[{"url":"https://www.balbooa.com/joomla-forms","tags":["product","Product"]},{"url":"https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw/","tags":["third-party-advisory","Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56291","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56291"},{"url":"https://mysites.guru/blog/balbooa-forms-unauthenticated-file-upload-flaw"},{"url":"https://github.com/advisories/GHSA-28f5-j5p5-xmmw"}],"sources":{"cve":[{"id":"CVE-2026-56291","title":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1","description":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","status":"published","published":"2026-07-09T09:53:57.886Z","modified":"2026-08-12T13:52:32.561Z","cvss":[{"version":"4.0","score":10,"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/E:A/AU:Y/U:Red","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T13:36:51.6229Z"}],"euvd":[{"id":"EUVD-2026-42573","description":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","status":"published","published":"2026-07-09T09:53:57Z","modified":"2026-08-12T13:52:32Z","cvss":[{"version":"4.0","score":10,"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/E:A/AU:Y/U:Red","level":"critical"}],"exploited_since":"2026-07-10","updated_at":"2026-11-02T18:01:58.638592Z"}],"ghsa":[{"id":"GHSA-28f5-j5p5-xmmw","title":"The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that...","description":"The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","status":"published","published":"2026-07-09T12:30:28Z","modified":"2026-07-10T18:33:13Z","cvss":[{"version":"4.0","score":10,"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/E:A/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:Y/R:X/V:X/RE:X/U:Red","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:09:23.304195Z"}],"kev":[{"id":"CVE-2026-56291","title":"Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability","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.","cwes":["CWE-434"],"kev":{"date_added":"2026-07-10","due_date":"2026-07-13","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.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-56291","description":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension \u003c 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","status":"published","published":"2026-07-09T11:16:40.99Z","modified":"2026-10-25T17:10:00.197Z","cvss":[{"version":"4.0","score":10,"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/E:A/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:Y/R:X/V:X/RE:X/U:Red","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:28.4135Z"}]}}