CVE-2026-59709
MEDIUMGhostfolio - Unauthorized Portfolio Holding Tag Modification via Missing Permission Check
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Patch patch
Patch Commit
https://github.com/ghostfolio/ghostfolio/commit/697ef59e3b58bebc5c21a9e482e4f5643390f316
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/ghostfolio-unauthorized-portfolio-holding-tag-modification-via-missing-permission-check
Scores
CVSS v3
4.3
EPSS
0.0020
EPSS Percentile
10.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (2)
Ghostfolio/Ghostfolio
< 3.6.0
Ghostfolio/Ghostfolio
< 697ef59
Published
Jul 07, 2026
Tracked Since
Jul 07, 2026