{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18436 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18436 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18436 is a medium-severity missing authorization vulnerability in MailerPress – Newsletter, email marketing \u0026 AI automation, published on 31 Jul 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-2026-18436 and fix it if it is affected.\n\nWhat it is: CVE-2026-18436 is a medium-severity missing authorization vulnerability in MailerPress – Newsletter, email marketing \u0026 AI automation, published on 31 Jul 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-2026-18436 in the wild and no public exploit code.\n\nAffected product: MailerPress – Newsletter, email marketing \u0026 AI automation. 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-2026-18436/ (Markdown: https://insights.sbomify.com/CVE-2026-18436/index.md)","id":"CVE-2026-18436","markdown":"https://insights.sbomify.com/CVE-2026-18436/index.md","name":"CVE-2026-18436","record":{"aliases":["GHSA-vfgx-g9m5-wfgv"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can modify campaign content by restoring arbitrary revisions via an unprotected REST API endpoint in the MailerPress plugin.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"The MailPress plugin for WordPress is vulnerable to unauthorized access in versions up to, and including, 1.5.0 via the campaign revision-restore REST endpoint (POST /wp-json/mailpress/v1/campaign/\u003cid\u003e/restore-revision/\u003crevision_id\u003e). The route in the vulnerable range was registered without a permissionCallback, allowing the restoreRevision() handler to run for unauthenticated requests and overwrite a campaign's content_html with any prior revision. This makes it possible for unauthenticated attackers to modify campaign content by restoring an arbitrary revision.","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":"MailerPress \u003c= 1.5.0 - Missing Authorization to Unauthenticated Arbitrary Modification via REST API Endpoint","id":"CVE-2026-18436","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"MailPress \u003c= 1.5.0 - Missing Authorization to Unauthenticated Contact Updates","id":"CVE-2026-18437"},"packages":[],"prev":{"headline":"Kadence Blocks \u003c= 3.7.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'toggleIcon' Block Attribute","id":"CVE-2026-18435"},"products":["MailerPress – Newsletter, email marketing \u0026 AI automation"],"published":"2026-07-31","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":"2026-07-31","vendors":["mailerpress"]},"summary":"Unauthenticated attackers can modify campaign content by restoring arbitrary revisions via an unprotected REST API endpoint in the MailerPress plugin.","url":"https://insights.sbomify.com/CVE-2026-18436/"}