{"id":"CVE-2026-56291","kind":"vulnerability","aliases":["CVE-2026-56291"],"related":[],"title":"Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 - The Joomla…","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.\n\nCISA 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.","summary":"Balbooa Forms, a form plugin for websites, has an unauthenticated arbitrary file upload flaw that accepts executable file types. An attacker can upload a script and run code on the server, giving full remote code execution.","severity":"critical","cvss":10.0,"epss":null,"exploited":true,"exploited_at":"2026-07-10T00:00:00+00:00","products":[{"name":"balbooa forms","fixed":["2.4.1"],"affected":"< 2.4.1","ecosystem":"vendor"},{"name":"Balbooa Forms","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["balbooa-forms","exploited","other","self-hosted","wordpress"],"not_affected_if":["product-not-installed"],"how_to_check":"Check whether Balbooa Forms is installed on your site and which version it runs; the sources do not give a file path or version to compare against.\nReview the upload directories of the Balbooa Forms plugin for unexpected executable files such as .php files.","fix":null,"status":"open","published_at":"2026-07-09T11:16:40+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:33:43+00:00","updated_at":"2026-10-24T00:09:50+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T20:33:43Z","model":"claude-haiku-5-5","output":{"fix":"unknown","summary":"Balbooa Forms, a form plugin for websites, has an unauthenticated arbitrary file upload flaw that accepts executable file types. An attacker can upload a script and run code on the server, giving full remote code execution.","category":"other","who_cares":["balbooa-forms","wordpress","self-hosted"],"confidence":0.6,"analyst_note":"Exploited in the wild per CISA KEV; find the vendor advisory for affected and fixed versions, the patched release, and the upload path, then confirm the CISA KEV entry at https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-56291.","how_to_check":"Check whether Balbooa Forms is installed on your site and which version it runs; the sources do not give a file path or version to compare against.\nReview the upload directories of the Balbooa Forms plugin for unexpected executable files such as .php files.","needs_analyst":true,"not_affected_if":["product-not-installed"],"severity_if_unknown":"critical"},"cost_usd":0.000406,"input_tokens":2218,"output_tokens":369,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-04':116C,142C,173C '-2026':15A,18A '-56291':16A,19A '2.4.1':11A '26':115C,141C,172C 'accept':48B 'accord':105C 'action':101C 'adher':169C 'allow':82C,90C 'appli':102C 'applic':139C 'arbitrari':43B,85C 'asset':163C 'attack':53B 'balbooa':8A,20A,22A,25B,33B,69C 'balbooa-form':24B 'balbooa.com':3A 'base':120C 'bod':114C,140C,171C 'cisa':99C,112C,129C 'cloud':145C 'code':60B,67B 'complianc':110C 'contain':71C 'could':89C 'cve':14A,17A 'danger':78C 'discontinu':148C 'ensur':109C,168C 'evalu':161C 'execut':49B,68B,93C 'exploit':27B 'exposur':166C 'extens':2A,10A 'file':5A,44B,50B,76C,86C,94C 'flaw':46B 'follow':138C 'forens':131C 'form':9A,26B,34B,36B,70C 'forms':21A,23A 'full':65B,97C 'give':64B 'guidanc':127C,143C 'guidelin':175C 'host':31B 'instruct':108C 'internet':165C 'joomla':1A,13A 'lead':95C 'mitig':103C,154C 'note':126C,137C 'patch':174C 'plugin':37B 'priorit':117C 'product':152C 'rce':98C 'remot':66B 'requir':100C,133C 'respons':159C 'risk':122C 'run':59B 'script':57B 'secur':118C 'see':123C,134C 'self':30B 'self-host':29B 'server':63B 'servic':146C 'stakehold':157C 'triag':132C 'type':51B,79C 'unauthent':4A,42B,84C 'unavail':156C 'unrestrict':73C 'updat':119C 'upload':6A,45B,55B,74C,87C,91C 'url':124C,135C 'use':149C 'vendor':107C 'vulner':80C 'websit':39B 'wordpress':32B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-07-09T11:16:40+00:00","kev":{"dateAdded":"2026-07-10","dueDate":"2026-07-13","requiredAction":"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.","knownRansomwareCampaignUse":"Unknown"},"cvss_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","cvss_by":"security@joomla.org","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2026-56291","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-56291","severity":null,"published_at":"2026-07-10T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:04+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-56291","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56291","severity":null,"published_at":"2026-07-09T11:16:40+00:00","modified_at":"2026-07-24T13:30:37+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}