Buttercup buttercup-browser-extension Vault access control

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Summary

CVECVE-2017-20199
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-08-16 00:15:25 UTC
Updated2026-04-29 01:00:01 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 1.3 LOW from [email protected]

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-266 | CWE-284 | CWE-284 Improper Access Controls | CWE-266 Incorrect Privilege Assignment

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary1.3LOWCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED2.3LOWCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.1[email protected]Secondary3.1LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
3.1CNADECLARED3.1LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
3.0CNADECLARED3.1LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
2.0[email protected]Secondary2.6AV:N/AC:H/Au:N/C:P/I:N/A:N
2.0CNADECLARED2.6AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Buttercup Buttercup All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Buttercup Buttercup-browser-extension affected 0.14.0 Not specified
CNA Buttercup Buttercup-browser-extension affected 0.14.1 Not specified
CNA Buttercup Buttercup-browser-extension affected 0.14.2 Not specified
CNA Buttercup Buttercup-browser-extension unaffected 1.0.1 Not specified

References

ReferenceSourceLinkTags
github.com/buttercup/buttercup-browser-extension/issues/92 [email protected] github.com Issue Tracking
vuldb.com [email protected] vuldb.com Permissions Required, VDB Entry
github.com/buttercup/buttercup-browser-extension/pull/89 [email protected] github.com Patch
github.com/buttercup/buttercup-browser-extension/issues/92 [email protected] github.com Issue Tracking
github.com/buttercup/buttercup-browser-extension/issues/92 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Issue Tracking
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
vuldb.com [email protected] vuldb.com Third Party Advisory, VDB Entry
github.com/buttercup/buttercup-browser-extension/releases/tag/v1.0.1 [email protected] github.com Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Luke Childs (en)

CNA: lukechilds (VulDB User) (en)

CNA: lukechilds (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-08-13T00:00:00.000ZAdvisory disclosed
CNA2025-08-13T02:00:00.000ZVulDB entry created
CNA2025-08-27T18:53:06.000ZVulDB entry last update

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