{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-56290 in the wild since at least 7 Jul 2026.","fix":"No fix has been published for CVE-2026-56290 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 10 Jul 2026.","what":"CVE-2026-56290 is a critical vulnerability in JoomlaCK.fr Page Builder CK extension for Joomla, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-56290 and fix it if it is affected.\n\nWhat it is: CVE-2026-56290 is a critical vulnerability in JoomlaCK.fr Page Builder CK extension for Joomla, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-56290 in the wild since at least 7 Jul 2026.\n\nAffected product: JoomlaCK.fr Page Builder CK extension for Joomla. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-56290/ (Markdown: https://insights.sbomify.com/CVE-2026-56290/index.md)","id":"CVE-2026-56290","markdown":"https://insights.sbomify.com/CVE-2026-56290/index.md","name":"CVE-2026-56290","record":{"aliases":["GHSA-gxrr-wfg5-xqqf"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Joomla Page Builder CK","requires_auth":"none","summary":"Unauthenticated attackers can upload executable files to the Page Builder CK extension, leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Joomla","cpe":[{"product":"page_builder_ck","vendor":"joomlack"}],"cvss":{"score":10,"severity":"critical","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension \u003c 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2026-07-03","github_poc":5,"max_poc_stars":5,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-07-08T04:30:25Z","kind":"github_poc","ref":"https://github.com/Jenderal92/CVE-2026-56290","stars":5,"title":"CVE-2026-56290 - Mass Exploit for Joomla Com_pagebuilderck component (Unrestricted File Upload → RCE). Multi-threaded, automatic CSRF bypass, PHP shell uploader."},{"date":"2026-07-04T00:01:31Z","kind":"github_poc","ref":"https://github.com/shinthink/pbck-exploit","stars":3,"title":"📤 Mass exploitation framework for CVE-2026-56290 — Page Builder CK Joomla unauthenticated file upload to RCE"},{"date":"2026-07-03T00:52:36Z","kind":"github_poc","ref":"https://github.com/sagsooz/PageBuilderCK-CVE-2026-56290-Exploit","stars":2,"title":"Page Builder CK for Joomla - Unauthenticated SSRF / Remote File Write leading to PHP execution Exploiter"},{"date":"2026-07-08","kind":"exploitdb","ref":"52626","stars":null,"title":"Joomla Page Builder CK  3.5.10 -  Arbitrary File Upload"},{"date":"2026-07-19T08:07:26Z","kind":"github_poc","ref":"https://github.com/ChiefYoru/CVE-2026-56290_PoC","stars":0,"title":"The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE."},{"date":"2026-09-05T10:35:27Z","kind":"github_poc","ref":"https://github.com/katranSefa/CVE-2026-56290","stars":0,"title":null},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-56290.yaml","stars":null,"title":"Page Builder CK \u003c= 3.5.10 - Unauthenticated Arbitrary File Upload"}],"tier":"exploited"},"has_fix":null,"headline":"Joomlack Page Builder Improper Access Control","id":"CVE-2026-56290","indexable":true,"kev":{"dateAdded":"2026-07-07","dueDate":"2026-07-10","knownRansomwareCampaignUse":"Unknown","product":"Page Builder","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.","vendorProject":"Joomlack","vulnerabilityName":"Joomlack Page Builder Improper Access Control Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Balbooa Forms Unrestricted Upload of File with Dangerous Type","id":"CVE-2026-56291"},"packages":[],"prev":{"headline":"Loop with Unreachable Exit Condition in GNU patch","id":"CVE-2026-56289"},"products":["JoomlaCK.fr Page Builder CK extension for Joomla"],"published":"2026-06-29","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["joomlack.fr"]},"summary":"Unauthenticated attackers can upload executable files to the Page Builder CK extension, leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2026-56290/"}