{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66571 exists.","fix":"No fix has been published for CVE-2025-66571 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66571 is a critical unsafe deserialization vulnerability in Unknown UNA CMS, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-66571 and fix it if it is affected.\n\nWhat it is: CVE-2025-66571 is a critical unsafe deserialization vulnerability in Unknown UNA CMS, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66571 exists.\n\nAffected product: Unknown UNA CMS. 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-2025-66571/ (Markdown: https://insights.sbomify.com/CVE-2025-66571/index.md)","id":"CVE-2025-66571","markdown":"https://insights.sbomify.com/CVE-2025-66571/index.md","name":"CVE-2025-66571","record":{"aliases":["GHSA-fc26-hj5x-86vx"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"UNA CMS","requires_auth":"none","summary":"Remote unauthenticated attackers can achieve arbitrary code execution via PHP object injection in UNA CMS.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"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:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"UNA CMS versions 9.0.0-RC1 - 14.0.0-RC4 contain a PHP object injection vulnerability in BxBaseMenuSetAclLevel.php where the profile_id POST parameter is passed to PHP unserialize() without proper handling, allowing remote, unauthenticated attackers to inject arbitrary PHP objects and potentially write and execute arbitrary PHP code.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"UNA CMS 9.0.0-RC1 - 14.0.0-RC4 PHP Object Injection","id":"CVE-2025-66571","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"Loaded Commerce 6.6 Client-Side Template Injection (CSTI)","id":"CVE-2025-66572"},"packages":[],"prev":{"headline":"cpp-httplib Untrusted HTTP Header Handling: Internal Header Shadowing (REMOTE*/LOCAL*)","id":"CVE-2025-66570"},"products":["UNA CMS"],"published":"2025-12-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Unknown"]},"summary":"Remote unauthenticated attackers can achieve arbitrary code execution via PHP object injection in UNA CMS.","url":"https://insights.sbomify.com/CVE-2025-66571/"}