{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-87930 exists.","fix":"No fix has been published for CVE-2026-87930 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-87930 is a critical unsafe deserialization vulnerability in MaxSite CMS, published on 9 Sep 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-2026-87930 and fix it if it is affected.\n\nWhat it is: CVE-2026-87930 is a critical unsafe deserialization vulnerability in MaxSite CMS, published on 9 Sep 2026. 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-2026-87930 exists.\n\nAffected product: MaxSite 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-2026-87930/ (Markdown: https://insights.sbomify.com/CVE-2026-87930/index.md)","id":"CVE-2026-87930","markdown":"https://insights.sbomify.com/CVE-2026-87930/index.md","name":"CVE-2026-87930","record":{"aliases":["GHSA-2phq-cm26-22pm"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"MaxSite CMS","requires_auth":"none","summary":"Unauthenticated attackers can achieve code execution or corrupt state in MaxSite CMS by injecting PHP objects via forged session cookies using a hardcoded key.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/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":"MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achieve code execution if gadget classes exist.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-17","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-17T18:44:27Z","kind":"github_poc","ref":"https://github.com/winrarzipsexploit/CVE-2026-87930","stars":1,"title":"CVE-2026-87930 Joomla Multi-CVE RCE suite — authorized testing only"}],"tier":"weaponised"},"has_fix":null,"headline":"MaxSite CMS through 109.6 PHP Object Injection via ci_session","id":"CVE-2026-87930","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"Memory corruption in Pavlok Behavioral Conditioning Wearable","id":"CVE-2026-87931"},"packages":[],"prev":{"headline":"MaxSite CMS through 109.6 Authentication Bypass via Hardcoded Encryption Key","id":"CVE-2026-87929"},"products":["MaxSite CMS"],"published":"2026-09-09","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["MaxSite"]},"summary":"Unauthenticated attackers can achieve code execution or corrupt state in MaxSite CMS by injecting PHP objects via forged session cookies using a hardcoded key.","url":"https://insights.sbomify.com/CVE-2026-87930/"}