CVSS 3.0
4.3 mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NCVE-2019-9147
Medium (4.3) in mailvelope mailvelope. EPSS 1.4% chance of exploitation in the next 30 days.
Mailvelope prior to 3.1.0 is vulnerable to a clickjacking attack against the settings page. As the settings page is intended to be accessible from web applications, the browser's extension isolation mechanisms are disabled (web_accessible_resources). Mailvelope implements additional measures to prevent web applications from directly embedding the settings page, but this mechanism can be bypassed.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1021
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mailvelope:mailvelope
References
- https://github.com/mailvelope/mailvelope/blob/master/Changelog.md#v310
- https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html
- https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.pdf?__blob=publicationFile&v=3
- https://github.com/mailvelope/mailvelope/blob/master/Changelog.md#v310
- https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html