{"answers":{"affected":"2 open source packages ship an affected version, including alextselegidis/easyappointments.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52840 exists.","fix":"No fix has been published for CVE-2026-52840 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-52840 is a low-severity server-side request forgery vulnerability in alextselegidis easyappointments, published on 14 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-52840 and fix it if it is affected.\n\nWhat it is: CVE-2026-52840 is a low-severity server-side request forgery vulnerability in alextselegidis easyappointments, published on 14 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52840 exists.\n\nAffected packages and fixed versions:\n- alextselegidis/easyappointments (Packagist): affected all versions up to 1.5.2; no fix listed\n- alextselegidis/easyappointments (Packagist): affected all versions up to 1.5.2; no fix listed\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-2026-52840/ (Markdown: https://insights.sbomify.com/CVE-2026-52840/index.md)","id":"CVE-2026-52840","markdown":"https://insights.sbomify.com/CVE-2026-52840/index.md","name":"CVE-2026-52840","record":{"aliases":["GHSA-pm5p-7w5h-jm5q"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Appointment scheduler","requires_auth":"high_privilege","summary":"A logged-in user can exploit a CalDAV connection test to perform server-side request forgery, accessing internal network resources and reading response data.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":2.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Caldav::connect_to_server` at `application/controllers/Caldav.php:60` hands the request's `caldav_url` to a Guzzle `REPORT` call without scheme or host validation. A logged-in backend user (admin, provider, or secretary) reaches loopback, RFC1918, and link-local hosts on the deployment's network. The Guzzle exception path returns the upstream status code plus ~120 bytes of response body in the JSON `message` field (`Caldav.php:74-78`), so the SSRF is semi-blind. Version 1.6.0 contains a patch.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network","id":"CVE-2026-52840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Easy!Appointments: Authorization bypass in Google OAuth provider binding lets any backend user rebind a peer provider's Google sync","id":"CVE-2026-52841"},"packages":[{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["1.5.2"],"package":"alextselegidis/easyappointments","purl":null,"source":"GHSA-pm5p-7w5h-jm5q"},{"ecosystem":"Packagist","fixed":[],"introduced":["0"],"last_affected":["1.5.2"],"package":"alextselegidis/easyappointments","purl":"pkg:composer/alextselegidis/easyappointments","source":"GHSA-pm5p-7w5h-jm5q"}],"prev":{"headline":"Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass","id":"CVE-2026-52839"},"products":["easyappointments"],"published":"2026-07-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["alextselegidis"]},"summary":"A logged-in user can exploit a CalDAV connection test to perform server-side request forgery, accessing internal network resources and reading response data.","url":"https://insights.sbomify.com/CVE-2026-52840/"}