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CVE-2026-82811— Toggl OÜ Toggl Track Extension postMessage origin validation

Quick assessment

Affected
Toggl OÜ Toggl Track Extension
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Toggl OÜ 的 Toggl Track 扩展程序版本 4.11.16 中检测到一处安全漏洞。该漏洞影响组件 中的某个未知功能。攻击者可通过操作引发源验证错误（origin validation error）。此攻击可远程发起。该漏洞利用方式已公开披露，并可能被实际利用。厂商曾就被披露事宜提前联系过，但对方未作任何回应。

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-82811

Vulnerability Information
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Vulnerability Title
Toggl OÜ Toggl Track Extension postMessage origin validation
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Toggl OÜ Toggl Track Extension 4.11.16. This affects an unknown function of the component postMessage Handler. The manipulation leads to origin validation error. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Toggl OÜ Toggl Track Extension 4.11.16 cpe:2.3:a:toggl_o_:toggl_track_extension:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82811

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III. Intelligence Information for CVE-2026-82811

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Vendor Advisories for CVE-2026-82811 (1)

Proof of Concept for CVE-2026-82811 (1)

Other References for CVE-2026-82811 (2)

IV. Related Vulnerabilities

Same weakness: CWE-346

V. Comments for CVE-2026-82811

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