CVE-2026-59709 | Ghostfolio's PUT /api/v1/portfolio/holding/:dataSource/:symb… | CVSS 4.3 MEDIUM

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.

Metadata

CVE ID: CVE-2026-59709
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-06 15:31 UTC
Published: 2026-07-07 14:12 UTC
Last updated: 2026-07-07 14:12 UTC
Primary CWE: CWE-862
Missing Authorization
Vendor / Product: Ghostfolio / Ghostfolio
Sources: cve.org · NVD

Severity & Metrics

4.3 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
Ghostfolio	Ghostfolio	—	0 ≤ 3.6.0, 0 < 697ef59

Weakness (CWE)

CWE	Source	Description
CWE-862	cna	Missing Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	4.0	cna	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
4.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References (4)