{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12428 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12428 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12428 is a medium-severity missing authorization vulnerability in gamaup Blocks for ACF Fields — Display Custom Fields in the Block Editor, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-12428 and fix it if it is affected.\n\nWhat it is: CVE-2026-12428 is a medium-severity missing authorization vulnerability in gamaup Blocks for ACF Fields — Display Custom Fields in the Block Editor, published on 9 Jul 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-2026-12428 in the wild and no public exploit code.\n\nAffected product: gamaup Blocks for ACF Fields — Display Custom Fields in the Block Editor. 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-2026-12428/ (Markdown: https://insights.sbomify.com/CVE-2026-12428/index.md)","id":"CVE-2026-12428","markdown":"https://insights.sbomify.com/CVE-2026-12428/index.md","name":"CVE-2026-12428","record":{"aliases":["GHSA-8mgm-62qj-rh6h"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"Authenticated attackers with Author-level access can read arbitrary ACF field values from private or other users' posts due to missing authorization checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"The Blocks for ACF Fields plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_all_values() function in the /wp-json/acf-field-blocks/v1/values REST endpoint in versions up to, and including, 1.6.2. The permission_callback only verifies the generic publish_posts capability and the handler passes a user-supplied id parameter directly to get_field_objects() without verifying that the requesting user is authorized to read the target object. This makes it possible for authenticated attackers, with Author-level access and above, to read ACF field values from arbitrary posts (including private posts, drafts, posts by other users, and other ACF-supported objects) that they should not have access to.","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":"Missing authorization in Blocks for ACF Fields — Display Custom Fields in the Block Editor","id":"CVE-2026-12428","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Blocksy Companion \u003c= 2.1.45 - Authenticated (Editor+) Stored Cross-Site Scripting via 'product_description' Parameter","id":"CVE-2026-12430"},"packages":[],"prev":{"headline":"Members \u003c= 3.2.22 - Unauthenticated Sensitive Information Disclosure via REST API Pagination Side Channel","id":"CVE-2026-12426"},"products":["Blocks for ACF Fields — Display Custom Fields in the Block Editor"],"published":"2026-07-09","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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-09","vendors":["gamaup"]},"summary":"Authenticated attackers with Author-level access can read arbitrary ACF field values from private or other users' posts due to missing authorization checks.","url":"https://insights.sbomify.com/CVE-2026-12428/"}