{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-87891 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-87891 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-87891 is a medium-severity missing authorization vulnerability in Unknown Rox Appointment Booking, published on 12 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-2026-87891 and fix it if it is affected.\n\nWhat it is: CVE-2026-87891 is a medium-severity missing authorization vulnerability in Unknown Rox Appointment Booking, published on 12 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-2026-87891 in the wild and no public exploit code.\n\nAffected product: Unknown Rox Appointment Booking. 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-2026-87891/ (Markdown: https://insights.sbomify.com/CVE-2026-87891/index.md)","id":"CVE-2026-87891","markdown":"https://insights.sbomify.com/CVE-2026-87891/index.md","name":"CVE-2026-87891","record":{"aliases":["GHSA-82fg-m2x5-cqp7"],"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 holiday schedules in the Rox Appointment Booking plugin, disrupting booking availability.","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:N/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"The Rox Appointment Booking  WordPress plugin before 1.2.0 does not perform any capability or authorization check when saving its holiday schedule, allowing unauthenticated attackers to overwrite the dates the booking system treats as unavailable, which can block legitimate bookings or open dates the site owner intended to keep closed.","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":"Rox Appointment Booking \u003c 1.2.0 - Unauthenticated Holiday Schedule Modification via REST API","id":"CVE-2026-87891","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":"Rox Appointment Booking \u003c 1.2.0 - Unauthenticated Price Manipulation and Payment Method Restriction Bypass","id":"CVE-2026-87892"},"packages":[],"prev":{"headline":"Potential request forgery via spatial lookup byte values","id":"CVE-2026-87890"},"products":["Rox Appointment Booking"],"published":"2026-09-12","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":"2026-09-12","vendors":["Unknown"]},"summary":"Unauthenticated attackers can modify holiday schedules in the Rox Appointment Booking plugin, disrupting booking availability.","url":"https://insights.sbomify.com/CVE-2026-87891/"}