CVE-2026-26862
1 advisory.
npm/clevertap-web-sdk CVE-2026-26862: high 8.3, EPSS 0.55%
CleverTap Web SDK is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage
Action: Upgrade clevertap-web-sdk to 1.15.3 or later.
npm i clevertap-web-sdk@1.15.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.15.3 | - |
Fixed versions
| 1.15.3 |
Sources
- osv: GHSA-jfrq-hj9f-c8qx
- https://nvd.nist.gov/vuln/detail/CVE-2026-26862
- https://github.com/CleverTap/clevertap-web-sdk/issues/442
- https://github.com/CleverTap/clevertap-web-sdk/pull/417
- https://github.com/CleverTap/clevertap-web-sdk/commit/766f75f0c9082a27eb0b59c9fa4b0d9b19ba3d10
- https://github.com/CleverTap/clevertap-web-sdk/commit/84695b726a751614ddc3a4f71382c239c5833e03
- https://github.com/CleverTap/clevertap-web-sdk
- https://github.com/CleverTap/clevertap-web-sdk/blob/cf1b65d/src/modules/visualBuilder/pageBuilder.js#L56-L60
CVE-2026-26862 · published · modified · JSON