CVE-2026-82811: Toggl OÜ Toggl Track Extension · CWE-345
Source GCVE Database
Public exploit available · CVSS 5.3 Medium.
Data as of 11 Nov 2026, 13:48 UTC
Thin evidence
One scorer or none| CNA (VulDB) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulDB) | CVSS 3.1 | 5.4 |
| CNA (VulDB) | CVSS 3.0 | 5.4 |
| CNA (VulDB) | CVSS 2.0 | 6.4 |
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:PExploitation evidence
Disclosed: evidence found.
CVE published 31 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Toggl OÜToggl Track Extension | Affected
| Fixed in– |
AI-suggested
Users should exercise caution when using version 4.11.16 of the Toggl Track Extension and monitor for any future vendor advisories or updates addressing this issue.
Description
A security vulnerability (CVE-2026-82811) exists in Toggl OÜ Toggl Track Extension version 4.11.16. The flaw involves an origin validation error in the postMessage handler component, which can be exploited remotely. The vulnerability has a medium severity score of 5.4 and has been publicly disclosed. The vendor was notified but has not responded or provided a patch. No known exploits are currently active in the wild.
References
- nvd.nist.gov/vuln/detail/CVE-2026-82811 (opens in a new tab)
- 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 (opens in a new tab)
- vuldb.com/cve/CVE-2026-82811 (opens in a new tab)
- vuldb.com/submit/875273 (opens in a new tab)
- vuldb.com/vuln/397230 (opens in a new tab)
- vuldb.com/vuln/397230/cti (opens in a new tab)