cvedb.io
CVE-2026-41886
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-08T16:16:12.060 · Last modified 2026-06-17T10:47:08.593

Summary

locize is a localization platform that connects code and i18n setup. Prior to version 4.0.21, the locize client SDK registers a window.addEventListener("message", …) handler that dispatches to registered internal handlers (editKey, commitKey, commitKeys, isLocizeEnabled, requestInitialize, …) without validating event.origin. The pre-patch listener in src/api/postMessage.js gates dispatch on event.data.sender === "i18next-editor-frame" — that value sits inside the attacker-controlled message payload, not the browser-enforced origin. Any web page that could embed or be embedded by a locize-enabled host — an iframe on a third-party page, a window.open-ed victim, a parent frame reaching down — could send a crafted postMessage and trigger the internal handlers. This issue has been patched in ve

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.