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CVE-2026-52782

CRITICAL
9.9
CVSS 3.1
Description
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH parameter "storages_project_storage[project_folder_id]" leads to Access to Unauthorized Resources. A project-admin in one project can hijack the managed Nextcloud or OneDrive folder of another project on the same storage by writing the victim project's project_folder_id into the attacker's Storages::ProjectStorage row. The next managed-folder sync overwrites the ACL on the referenced folder with the attacker project's user list. This vulnerability is fixed in 17.3.3 and 17.4.1.

Metadata

CVE ID
CVE-2026-52782
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-08 17:13 UTC
Published
2026-06-26 18:59 UTC
Last updated
2026-06-26 18:59 UTC
Primary CWE
CWE-639
CWE-639: Authorization Bypass Through User-Controlled Key
Vendor / Product
opf / openproject
Sources
cve.org  ·  NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products (1)
VendorProductPlatformVersions
opf openproject — < 17.3.3, >= 17.4.0, < 17.4.1
Weakness (CWE)
CWESourceDescription
CWE-639 cna CWE-639: Authorization Bypass Through User-Controlled Key
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.9 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References (1)
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