{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-16264 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-16264 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-16264 is a medium-severity missing authorization vulnerability in Unknown Newsletters, published on 23 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-2026-16264 and fix it if it is affected.\n\nWhat it is: CVE-2026-16264 is a medium-severity missing authorization vulnerability in Unknown Newsletters, published on 23 Sep 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-2026-16264 in the wild and no public exploit code.\n\nAffected product: Unknown Newsletters. 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-2026-16264/ (Markdown: https://insights.sbomify.com/CVE-2026-16264/index.md)","id":"CVE-2026-16264","markdown":"https://insights.sbomify.com/CVE-2026-16264/index.md","name":"CVE-2026-16264","record":{"aliases":["GHSA-q3j5-fxpp-r5pf"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can read and overwrite subscriber records, exposing PII and modifying email addresses due to missing ownership checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","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-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues a management session to unauthenticated visitors on request, allowing attackers to read any subscriber's personal data and overwrite any subscriber's record including their email address.","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":"Newsletters \u003c 4.18.1 - Unauthenticated Subscriber Record Overwrite and PII Disclosure via IDOR","id":"CVE-2026-16264","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WP Maps \u003c 4.9.7 - Subscriber+ Denial of Service","id":"CVE-2026-16265"},"packages":[],"prev":{"headline":"WP Maps \u003c 4.9.7 - Subscriber+ Local File Inclusion","id":"CVE-2026-16263"},"products":["Newsletters"],"published":"2026-09-23","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":"2026-09-23","vendors":["Unknown"]},"summary":"Unauthenticated attackers can read and overwrite subscriber records, exposing PII and modifying email addresses due to missing ownership checks.","url":"https://insights.sbomify.com/CVE-2026-16264/"}