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.
Published: 2026-07-07
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 08 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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'}


Subscriptions

Ghostfol Ghostfolio
Ghostfolio Ghostfolio
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-08T17:11:10.952Z

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

Link: CVE-2026-59709

cve-icon Vulnrichment

Updated: 2026-07-08T16:49:12.903Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-08T16:15:04Z

Weaknesses