CVE-2026-82811
Toggl OÜ Toggl Track Extension postMessage origin validation
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."
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Toggl Track Extension Toggl OÜ |
4.11.0 (affected) 4.11.1 (affected) 4.11.2 (affected) 4.11.3 (affected) 4.11.4 (affected) 4.11.5 (affected) 4.11.6 (affected) 4.11.7 (affected) 4.11.8 (affected) 4.11.9 (affected) 4.11.10 (affected) 4.11.11 (affected) 4.11.12 (affected) 4.11.13 (affected) 4.11.14 (affected) 4.11.15 (affected) 4.11.16 (affected) 4.11.17 (affected) 4.11.18 (affected) 4.11.19 (affected) 4.11.20 (affected) 4.11.21 (affected) 4.11.22 (unaffected) |
CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.3 medium |
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 | CNA: VulDB |
| 3.1 / 5.4 medium |
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 | CNA: VulDB |
| 3.0 / 5.4 medium |
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 | CNA: VulDB |
| 2.0 / 6.4 medium |
AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:OF/RC:C | CNA: VulDB |
| 4.0 / 2.1 low |
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 5.4 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L | NVD: [email protected] |
| 2.0 / 6.4 medium |
AV:N/AC:L/Au:N/C:N/I:P/A:P | NVD: [email protected] |
Exploit evidence
References
- https://vuldb.com/vuln/397230CNA: VulDB · vdb-entry
- https://vuldb.com/vuln/397230/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-82811CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/875273CNA: VulDB · third-party-advisory
- https://github.com/xryj920/chrome_extensions/blob/main/Toggl%20O%C3%9C%20Toggl%20Track%204.11.16%20accepts%20forged%20session-state%20messages%20through%20an%20unauthenticated%20postMessage%20handlerCNA: VulDB · exploit
- https://github.com/xryj920/chrome_extensions/blob/main/Toggl%20O%C3%9C%20Toggl%20Track%204.11.16%20accepts%20forged%20session-state%20messages%20through%20an%20unauthenticated%20postMessage%20handler[email protected]
- https://vuldb.com/cve/CVE-2026-82811[email protected]
- https://vuldb.com/submit/875273[email protected]
- https://vuldb.com/vuln/397230[email protected]
- https://vuldb.com/vuln/397230/cti[email protected]
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