{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-11T21:06:12.712","vulnerabilities":[{"cve":{"id":"CVE-2026-26861","sourceIdentifier":"cve@mitre.org","published":"2026-02-27T18:16:12.043","lastModified":"2026-03-03T18:46:02.547","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-Site Scripting (XSS) via window.postMessage. The handleCustomHtmlPreviewPostMessageEvent function in src/util/campaignRender/nativeDisplay.js performs insufficient origin validation using the includes() method, which can be bypassed by an attacker using a subdomain"},{"lang":"es","value":"CleverTap Web SDK versión 1.15.2 y anteriores es vulnerable a Cross-Site Scripting (XSS) a través de window.postMessage. La función handleCustomHtmlPreviewPostMessageEvent en src/util/campaignRender/nativeDisplay.js realiza una validación de origen insuficiente utilizando el método includes(), que puede ser eludida por un atacante utilizando un subdominio."}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L","baseScore":8.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":5.5}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-346"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:clevertap:clevertap_web_sdk:*:*:*:*:*:*:*:*","versionEndIncluding":"1.15.2","matchCriteriaId":"A4F60CE8-3848-4625-82B3-64963E248307"}]}]}],"references":[{"url":"https://github.com/CleverTap/clevertap-web-sdk/blob/cf1b65d/src/util/campaignRender/nativeDisplay.js#L118-L121","source":"cve@mitre.org","tags":["Product"]},{"url":"https://github.com/CleverTap/clevertap-web-sdk/issues/424","source":"cve@mitre.org","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/CleverTap/clevertap-web-sdk/pull/417","source":"cve@mitre.org","tags":["Patch"]}]}}]}