CVE-2026-82811

Toggl OÜ Toggl Track Extension postMessage origin validation

View on CVE.org
Published Aug 31, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
A security vulnerability has been detected in Toggl OÜ Toggl Track Extension up to 4.11.21. 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. Upgrading to version 4.11.22 mitigates this issue. Upgrading the affected component is advised. The vendor confirms, that "[i]t was fixed in 4.11.21 on Chrome and 4.11.22 on Firefox."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
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. A security vulnerability has been detected in Toggl OÜ Toggl Track Extension up to 4.11.21. 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. Upgrading to version 4.11.22 mitigates this issue. Upgrading the affected component is advised. The vendor confirms, that "[i]t was fixed in 4.11.21 on Chrome and 4.11.22 on Firefox."
Metrics cvssV2_0

{'score': 6.4, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

 cvssV2_0

{'score': 6.4, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C'}
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
Type Values Removed Values Added
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.
Title Toggl OÜ Toggl Track Extension postMessage origin validation
First Time appeared Toggl O
Toggl O toggl Track Extension
Weaknesses CWE-345
CWE-346
CPEs cpe:2.3:a:toggl_o_:toggl_track_extension:*:*:*:*:*:*:*:*
Vendors & Products Toggl O
Toggl O toggl Track Extension
References
Metrics cvssV2_0

{'score': 6.4, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Nov 11, 2026, 10:16 AM
Reserved
Aug 31, 2026, 5:10 AM

View source JSON

Updated
Aug 31, 2026, 6:47 PM

JSON

Status
Deferred
Published
Aug 31, 2026, 6:17 PM
Modified
Nov 11, 2026, 11:17 AM

View source JSON

No data.

Updated
Aug 31, 2026, 7:45 PM

JSON