CVE-2026-82811

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

Not scored by EPSS

EPSS percentile

Not scored by EPSS

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Not recorded

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-31 17:00Z1 HR AGO

Last updated

2026-08-31 17:00Z1 HR AGO

Reserved

2026-08-31

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS 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

• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-346Origin Validation ErrorClass

Data version

5.2

Document digest

733578ae6af49ceabd72b30e1a065e0d900db1ab1def95b534062ac136ce58c4

• vuldb.comVDB-397230 | Toggl OÜ Toggl Track Extension postMessage origin validationhttps://vuldb.com/vuln/397230vdb-entry
• vuldb.comVDB-397230 | CTI Indicators (IOB, IOC)https://vuldb.com/vuln/397230/ctisignaturepermissions-required
• vuldb.comCVE-2026-82811 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-82811third-party-advisory
• vuldb.comSubmit #875273 | Toggl OÜ Toggl Track 4.11.16 Origin Validation Errorhttps://vuldb.com/submit/875273third-party-advisory
• github.comhttps://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%20handlerexploit