{"url":"http://public2.vulnerablecode.io/api/packages/1019827?format=json","purl":"pkg:composer/joedolson/my-calendar@3.7.5","type":"composer","namespace":"joedolson","name":"my-calendar","version":"3.7.5","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"3.7.7","latest_non_vulnerable_version":"3.7.7","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/84423?format=json","vulnerability_id":"VCID-2hux-ez28-qfcg","summary":"My Calendar is a WordPress plugin for managing calendar events. In versions 3.7.6 and below, the mc_ajax_mcjs_action AJAX endpoint, registered for unauthenticated users, passes user-supplied arguments through parse_str() without validation, allowing injection of arbitrary parameters including a site value. On WordPress Multisite installations, this enables an unauthenticated attacker to call switch_to_blog() with an arbitrary site ID and extract calendar events from any sub-site on the network, including private or hidden events. On standard Single Site installations, switch_to_blog() does not exist, causing an uncaught PHP fatal error and crashing the worker thread, creating an unauthenticated denial of service vector. This issue has been fixed in version 3.7.7.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-40308","reference_id":"","reference_type":"","scores":[{"value":"0.02674","scoring_system":"epss","scoring_elements":"0.86152","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-40308"},{"reference_url":"https://github.com/joedolson/my-calendar","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/joedolson/my-calendar"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40308","reference_id":"CVE-2026-40308","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40308"},{"reference_url":"https://github.com/advisories/GHSA-2mvx-f5qm-v2ch","reference_id":"GHSA-2mvx-f5qm-v2ch","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-2mvx-f5qm-v2ch"},{"reference_url":"https://github.com/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch","reference_id":"GHSA-2mvx-f5qm-v2ch","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"8.8","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track*","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-04-17T12:32:21Z/"}],"url":"https://github.com/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch"},{"reference_url":"https://github.com/joedolson/my-calendar/releases/tag/v3.7.7","reference_id":"v3.7.7","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N"},{"value":"Track*","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-04-17T12:32:21Z/"}],"url":"https://github.com/joedolson/my-calendar/releases/tag/v3.7.7"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/374105?format=json","purl":"pkg:composer/joedolson/my-calendar@3.7.7","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/joedolson/my-calendar@3.7.7"}],"aliases":["CVE-2026-40308","GHSA-2mvx-f5qm-v2ch"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-2hux-ez28-qfcg"}],"fixing_vulnerabilities":[],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/joedolson/my-calendar@3.7.5"}