CVE-2019-9149
MEDIUMMailvelope < 3.3.0 - Unauthenticated Private Key Operations via Client-API URL Parameter
Title source: llmDescription
Mailvelope prior to 3.3.0 allows private key operations without user interaction via its client-API. By modifying an URL parameter in Mailvelope, an attacker is able to sign (and encrypt) arbitrary messages with Mailvelope, assuming the private key password is cached. A second vulnerability allows an attacker to decrypt an arbitrary message when the GnuPG backend is used in Mailvelope.
References (3)
Core 3
Core References
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/mailvelope/mailvelope/blob/master/Changelog.md#v330
Third Party Advisory x_refsource_misc
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html
Exploit, Third Party Advisory x_refsource_misc
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.pdf?__blob=publicationFile&v=3
Scores
CVSS v3
6.5
EPSS
0.0089
EPSS Percentile
54.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
CWE
CWE-347
CWE-863
Status
published
Products (1)
mailvelope/mailvelope
< 3.3.0
Published
Jul 09, 2019
Tracked Since
Feb 18, 2026