{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-82843 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-82843 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82843 is a critical authentication bypass vulnerability in Unknown WP OAuth Server ( Login with WordPress ), published on 23 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-82843 and fix it if it is affected.\n\nWhat it is: CVE-2026-82843 is a critical authentication bypass vulnerability in Unknown WP OAuth Server ( Login with WordPress ), published on 23 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-82843 in the wild and no public exploit code.\n\nAffected product: Unknown WP OAuth Server ( Login with WordPress ). 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-2026-82843/ (Markdown: https://insights.sbomify.com/CVE-2026-82843/index.md)","id":"CVE-2026-82843","markdown":"https://insights.sbomify.com/CVE-2026-82843/index.md","name":"CVE-2026-82843","record":{"aliases":["GHSA-rwfr-37x7-2rr8"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"Subscribers can impersonate administrators by exploiting OIDC token substitution flaws in the WP OAuth Server plugin, leading to full account takeover.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":9,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most recently, which allows users with the Subscriber role and above to obtain a validly signed identity assertion for another user, including an administrator, and authenticate as them at any application that uses the site for single sign-on.","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":"WP OAuth Server \u003c 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution","id":"CVE-2026-82843","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WPForms Lite 1.10.0.1 - 2.0.2.1 - Unauthenticated Payment Bypass via PayPal Commerce","id":"CVE-2026-82844"},"packages":[],"prev":{"headline":"SAML Single Sign On \u003c 6.0.0 - Unauthenticated Privilege Escalation via Account Matching","id":"CVE-2026-82842"},"products":["WP OAuth Server ( Login with WordPress )"],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-23","vendors":["Unknown"]},"summary":"Subscribers can impersonate administrators by exploiting OIDC token substitution flaws in the WP OAuth Server plugin, leading to full account takeover.","url":"https://insights.sbomify.com/CVE-2026-82843/"}