{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11964 exists.","fix":"No fix has been published for CVE-2026-11964 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11964 is a critical vulnerability in Unknown User Registration \u0026 Membership, published on 13 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-2026-11964 and fix it if it is affected.\n\nWhat it is: CVE-2026-11964 is a critical vulnerability in Unknown User Registration \u0026 Membership, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11964 exists.\n\nAffected product: Unknown User Registration \u0026 Membership. 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-2026-11964/ (Markdown: https://insights.sbomify.com/CVE-2026-11964/index.md)","id":"CVE-2026-11964","markdown":"https://insights.sbomify.com/CVE-2026-11964/index.md","name":"CVE-2026-11964","record":{"aliases":["GHSA-6f2x-47pc-8mpq"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can forge PayPal webhook notifications to bypass payment verification and activate paid membership subscriptions.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[],"description":"The User Registration \u0026 Membership  WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without completing a real payment.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Business logic in User Registration \u0026 Membership","id":"CVE-2026-11964","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"business_logic","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"User Registration \u0026 Membership \u003c 5.2.0 - Unauthenticated Paid Membership Bypass","id":"CVE-2026-11965"},"packages":[],"prev":{"headline":"User Registration \u0026 Membership \u003c 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR","id":"CVE-2026-11963"},"products":["User Registration \u0026 Membership"],"published":"2026-07-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-13","vendors":["Unknown"]},"summary":"Unauthenticated attackers can forge PayPal webhook notifications to bypass payment verification and activate paid membership subscriptions.","url":"https://insights.sbomify.com/CVE-2026-11964/"}