{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-45117 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-45117 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-45117 is a critical code injection vulnerability in mybb, published on 18 Aug 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-2026-45117 and fix it if it is affected.\n\nWhat it is: CVE-2026-45117 is a critical code injection vulnerability in mybb, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-45117 in the wild and no public exploit code.\n\nAffected product: mybb. 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-2026-45117/ (Markdown: https://insights.sbomify.com/CVE-2026-45117/index.md)","id":"CVE-2026-45117","markdown":"https://insights.sbomify.com/CVE-2026-45117/index.md","name":"CVE-2026-45117","record":{"aliases":["GHSA-gpc4-77rp-3xqr"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"MyBB forum software","requires_auth":"none","summary":"Attackers can execute arbitrary PHP code via crafted database configuration inputs during the MyBB installation process.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"MyBB is free and open source forum software. From 1.8.13 until 1.8.40, the installer module does not properly escape user-supplied database configuration values written to the configuration file, resulting in PHP code injection and remote code execution when the installer is available. install/index.php processes the values with addcslashes(), but the $characters argument added in MyBB 1.8.13 does not include the backslash character, allowing crafted input to escape the generated PHP string. The uniquely identifying implementation details include introduced in MyBB 1.8.13. This issue is fixed in version 1.8.40.","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":"MyBB: Installer database configuration RCE","id":"CVE-2026-45117","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"MyBB: Contact page reflected XSS","id":"CVE-2026-45118"},"packages":[],"prev":{"headline":"MyBB: Profile field type confusion XSS","id":"CVE-2026-45116"},"products":["mybb"],"published":"2026-08-18","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-18","vendors":["mybb"]},"summary":"Attackers can execute arbitrary PHP code via crafted database configuration inputs during the MyBB installation process.","url":"https://insights.sbomify.com/CVE-2026-45117/"}