{"schema_version":1,"title":"CleverTap Web SDK vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in CleverTap Web SDK: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2025-51684, was published on 30 July 2026.","url":"https://junglewise.ai/threats/technologies/web-sdk","json_url":"https://junglewise.ai/threats/technologies/web-sdk.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/web-sdk","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":3},"latest":[{"cve":"CVE-2025-51684","slug":"cve-2025-51684-clevertap-web-sdk-dom-xss-via-postmessage-in-rendercustomhtml","title":"CleverTap Web SDK DOM XSS via postMessage in renderCustomHtml","severity":"info","exploited":false,"published_at":"2026-07-30T20:16:51.793+00:00","url":"https://junglewise.ai/threats/cve-2025-51684-clevertap-web-sdk-dom-xss-via-postmessage-in-rendercustomhtml"},{"cve":"CVE-2026-26862","cvss":3.1,"epss":0.0051,"slug":"cve-2026-26862-clevertap-web-sdk-dom-based-xss-via-postmessage-origin-bypass","title":"CleverTap Web SDK DOM-based XSS via postMessage origin bypass","severity":"low","exploited":false,"published_at":"2026-02-27T18:31:06+00:00","url":"https://junglewise.ai/threats/cve-2026-26862-clevertap-web-sdk-dom-based-xss-via-postmessage-origin-bypass"},{"cve":"CVE-2026-26861","cvss":3.1,"epss":0.0022,"slug":"cve-2026-26861-clevertap-web-sdk-dom-based-xss-in-postmessage-handler","title":"CleverTap Web SDK DOM-based XSS in postMessage handler","severity":"low","exploited":false,"published_at":"2026-02-27T18:31:06+00:00","url":"https://junglewise.ai/threats/cve-2026-26861-clevertap-web-sdk-dom-based-xss-in-postmessage-handler"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"CleverTap Web SDK","slug":"web-sdk","vendor":{"name":"CleverTap","slug":"clevertap","url":"https://junglewise.ai/threats/vendors/clevertap"},"aliases":[],"category":"library","homepage":"https://clevertap.com/","repo_url":"https://github.com/CleverTap/clevertap-web-sdk","description":"The CleverTap Web SDK is a library that enables web applications to integrate with the CleverTap customer engagement platform.","url":"https://junglewise.ai/threats/technologies/web-sdk"},"most_severe":[{"cve":"CVE-2026-26862","cvss":3.1,"epss":0.0051,"slug":"cve-2026-26862-clevertap-web-sdk-dom-based-xss-via-postmessage-origin-bypass","title":"CleverTap Web SDK DOM-based XSS via postMessage origin bypass","severity":"low","exploited":false,"published_at":"2026-02-27T18:31:06+00:00","url":"https://junglewise.ai/threats/cve-2026-26862-clevertap-web-sdk-dom-based-xss-via-postmessage-origin-bypass"},{"cve":"CVE-2026-26861","cvss":3.1,"epss":0.0022,"slug":"cve-2026-26861-clevertap-web-sdk-dom-based-xss-in-postmessage-handler","title":"CleverTap Web SDK DOM-based XSS in postMessage handler","severity":"low","exploited":false,"published_at":"2026-02-27T18:31:06+00:00","url":"https://junglewise.ai/threats/cve-2026-26861-clevertap-web-sdk-dom-based-xss-in-postmessage-handler"},{"cve":"CVE-2025-51684","slug":"cve-2025-51684-clevertap-web-sdk-dom-xss-via-postmessage-in-rendercustomhtml","title":"CleverTap Web SDK DOM XSS via postMessage in renderCustomHtml","severity":"info","exploited":false,"published_at":"2026-07-30T20:16:51.793+00:00","url":"https://junglewise.ai/threats/cve-2025-51684-clevertap-web-sdk-dom-xss-via-postmessage-in-rendercustomhtml"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}