{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109308 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109308 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109308 is a high-severity code injection vulnerability in craftcms cms, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-109308 and fix it if it is affected.\n\nWhat it is: CVE-2026-109308 is a high-severity code injection vulnerability in craftcms cms, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-109308 in the wild and no public exploit code.\n\nAffected product: craftcms 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-2026-109308/ (Markdown: https://insights.sbomify.com/CVE-2026-109308/index.md)","id":"CVE-2026-109308","markdown":"https://insights.sbomify.com/CVE-2026-109308/index.md","name":"CVE-2026-109308","record":{"aliases":["GHSA-5m2g-hhqr-84pc","GHSA-r8mr-vm79-xxh4"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Craft CMS","requires_auth":"low_privilege","summary":"Authenticated Craft CMS users with update permissions can execute arbitrary code via behavior injection in the cache updates action.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter in AppController::actionCacheUpdates to UpdatesModel without Component::cleanseConfig(), allowing behavior and event-handler injection. Authenticated control panel users with the performUpdates permission or Updates-utility access can supply 'as' or 'on' keys, such as an AttributeTypecastBehavior gadget, to execute arbitrary code.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 RCE via actionCacheUpdates Behavior Injection","id":"CVE-2026-109308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"SiYuan v3.7.0 before v3.8.6 Arbitrary File Read via Plugin ResponseFile.Path","id":"CVE-2026-109309"},"packages":[],"prev":{"headline":"Craft CMS 5.0.0 before 5.10.14 DOM XSS via returnUrl in 2FA Verification","id":"CVE-2026-109307"},"products":["cms"],"published":"2026-10-12","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-13","vendors":["craftcms"]},"summary":"Authenticated Craft CMS users with update permissions can execute arbitrary code via behavior injection in the cache updates action.","url":"https://insights.sbomify.com/CVE-2026-109308/"}