{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-19856 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-19856 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-19856 is a medium-severity code injection vulnerability in Unknown All in One SEO, published on 2 Oct 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-2026-19856 and fix it if it is affected.\n\nWhat it is: CVE-2026-19856 is a medium-severity code injection vulnerability in Unknown All in One SEO, published on 2 Oct 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-2026-19856 in the wild and no public exploit code.\n\nAffected product: Unknown All in One SEO. 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-2026-19856/ (Markdown: https://insights.sbomify.com/CVE-2026-19856/index.md)","id":"CVE-2026-19856","markdown":"https://insights.sbomify.com/CVE-2026-19856/index.md","name":"CVE-2026-19856","record":{"aliases":["GHSA-f9q5-f8p2-3w5w"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can execute arbitrary shortcodes in the All in One SEO WordPress plugin, potentially leading to code execution.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"The All in One SEO WordPress plugin before 5.0.2.1 does not correctly determine which shortcodes are present in content derived from user input before deciding which ones to strip, allowing unauthenticated users to execute arbitrary shortcodes registered on the site. On sites upgraded from older versions the protection is disabled outright, making the issue reachable without any crafted input.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"All in One SEO \u003c 5.0.2.1 - Unauthenticated Arbitrary Shortcode Execution via Search Query","id":"CVE-2026-19856","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Formidable Forms \u003c 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Custom HTML Token","id":"CVE-2026-19857"},"packages":[],"prev":{"headline":"Code injection in CleanTalk","id":"CVE-2026-19855"},"products":["All in One SEO"],"published":"2026-10-02","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":"partial"},"state":"PUBLISHED","updated":"2026-10-06","vendors":["Unknown"]},"summary":"Unauthenticated attackers can execute arbitrary shortcodes in the All in One SEO WordPress plugin, potentially leading to code execution.","url":"https://insights.sbomify.com/CVE-2026-19856/"}