CVE-2017-20199 Details
Description
A vulnerability was found in Buttercup buttercup-browser-extension up to 0.14.2. Affected by this vulnerability is an unknown functionality of the component Vault Handler. The manipulation results in improper access controls. The attack may be performed from a remote location. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit has been made public and could be used. Upgrading to version 1.0.1 addresses this issue. The patch is identified as 89. Upgrading the affected component is recommended. This vulnerability only affects products that are no longer supported by the maintainer.
A vulnerability exists in the Buttercup browser extension for Chrome, specifically in versions through 0.14.2. This issue allows any web page to access the user's password store without permission. The vulnerability arises from improper access controls, enabling remote exploitation. Although the exploitation is complex and requires user interaction, a public exploit is available. The vulnerability has been assigned the identifier CVE-2017-20199 and is related to CWE-284, which pertains to incorrect enforcement of access controls.
Users can upgrade to Buttercup Browser Extension version 1.0.1 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 18, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-372991430 | CISA-ADP | Issue Tracking |
| https://github.com/buttercup/buttercup-browser-extension/issues/92 | [email protected] | Issue Tracking |
| https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-358449755 | [email protected] | Issue Tracking |
| https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-372991430 | [email protected] | Issue Tracking |
| https://github.com/buttercup/buttercup-browser-extension/pull/89 | [email protected] | Patch |
| https://github.com/buttercup/buttercup-browser-extension/releases/tag/v1.0.1 | [email protected] | Release Notes |
| https://vuldb.com/?ctiid.319969 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.319969 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.628170 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-266 | Incorrect Privilege Assignment | [email protected] |
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| buttercup buttercup | < 1.0.1 |
CPE
Remediation
| |
Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Aug 27, 2025 | Initial Analysis | [email protected] |
| Aug 24, 2025 | CVE Modified | [email protected] |
| Aug 18, 2025 | CVE Modified | [email protected] |
| Aug 18, 2025 | CVE Modified | CISA-ADP |
| Aug 16, 2025 | New CVE Received | [email protected] |