Buttercup buttercup-browser-extension Vault access control
Published Aug 15, 2025
2.3
LOWCVSS 4.0
EPSS 0.46%
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.
Affected products
-
- Version 0.14.0StatusaffectedConstraints-
- Version 0.14.1StatusaffectedConstraints-
- Version 0.14.2StatusaffectedConstraints-
- Version 1.0.1StatusunaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buttercup | Buttercup-Browser-Extension | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
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
AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C
1 other source (NVD) ▾
AV:N/AC:H/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Aug 18, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.46% (0.00462) | 37.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00426) | 33.78th | v5 (v2026.06.15) |
| Aug 16, 2025 | 0.03% (0.00034) | 7.87th | v4 (v2025.03.14) |
References (8)
- https://github.com/buttercup/buttercup-browser-extension/issues/92 issue-trackingIssue Tracking
- https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-358449755 issue-trackingIssue Tracking
- https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-372991430 exploitissue-trackingIssue Tracking
- https://github.com/buttercup/buttercup-browser-extension/pull/89 issue-trackingpatch
- https://github.com/buttercup/buttercup-browser-extension/releases/tag/v1.0.1 patchRelease Notes
- https://vuldb.com/?ctiid.319969 signaturepermissions-requiredPermissions RequiredVDB Entry
- https://vuldb.com/?id.319969 vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
- https://vuldb.com/?submit.628170 third-party-advisoryThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://github.com/buttercup/buttercup-browser-extension/issues/92 | issue-trackingIssue Tracking | |
| https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-358449755 | issue-trackingIssue Tracking | |
| https://github.com/buttercup/buttercup-browser-extension/issues/92#issuecomment-372991430 | exploitissue-trackingIssue Tracking | |
| https://github.com/buttercup/buttercup-browser-extension/pull/89 | issue-trackingpatch | |
| https://github.com/buttercup/buttercup-browser-extension/releases/tag/v1.0.1 | patchRelease Notes | |
| https://vuldb.com/?ctiid.319969 | signaturepermissions-requiredPermissions RequiredVDB Entry | |
| https://vuldb.com/?id.319969 | vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry | |
| https://vuldb.com/?submit.628170 | third-party-advisoryThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.