Ghostfolio's PUT /api/v1/portfolio/holding/:dataSource/:symbol/tags endpoint fails to verify Access.permissions field when processing the Impersonation-Id header, allowing read-only access grantees to modify portfolio holding tags. Attackers with valid read-only share tokens can assign or remove tags on victim holdings, corrupting portfolio categorization and reports.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Ghostfolio Ghostfolio unaffected
Version Status Constraints
0 affected ≤ 3.6.0
0 affected < 697ef59

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/ghostfolio/ghostfolio cve-icon
https://github.com/ghostfolio/ghostfolio/commit/697ef59e3b58bebc5c21a9e482e4f5643390f316 cve-icon
https://github.com/ghostfolio/ghostfolio/issues/7196 cve-icon
https://www.vulncheck.com/advisories/ghostfolio-unauthorized-portfolio-holding-tag-modification-via-missing-permission-check cve-icon
History

Tue, 07 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Ghostfolio
Ghostfolio ghostfolio
Vendors & Products Ghostfolio
Ghostfolio ghostfolio

Tue, 07 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
Description Ghostfolio's PUT /api/v1/portfolio/holding/:dataSource/:symbol/tags endpoint fails to verify Access.permissions field when processing the Impersonation-Id header, allowing read-only access grantees to modify portfolio holding tags. Attackers with valid read-only share tokens can assign or remove tags on victim holdings, corrupting portfolio categorization and reports.
Title Ghostfolio - Unauthorized Portfolio Holding Tag Modification via Missing Permission Check
First Time appeared Ghostfol
Ghostfol ghostfolio
Weaknesses CWE-862
CPEs cpe:2.3:a:ghostfol:ghostfolio:*:*:*:*:*:*:*:*
Vendors & Products Ghostfol
Ghostfol ghostfolio
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-07T14:12:23.972Z

Reserved: 2026-07-06T15:31:46.188Z

Link: CVE-2026-59709

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-07T17:00:05Z

Weaknesses