TI-2026-22088 Aliases CVE-2026-27723

OpenProject: Insufficient access control leads to create Wiki objects belongs unpermitted projects

LOW 24CWE-284Published 2026-03-05 · Updated 2026-03-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

OpenProject is an open-source, web-based project management software. Prior to versions 17.0.5 and 17.1.2, an attacker can create wiki pages belonging to unpermitted projects through an improperly authenticated request. This issue has been patched in versions 17.0.5 and 17.1.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00243 15th percentileScored 2026-11-07

Fix Fixed openproject (opf): 17.0.5, 17.1.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
opf	openproject	before 17.0.5; before 17.1.2	17.0.5, 17.1.2	Patch available	CNA

openproject Vendoropf Affected before 17.0.5; before 17.1.2 Fixed in 17.0.5, 17.1.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openproject:openproject::::::::	before 17.0.5; 17.1.0 to before 17.1.2	Vulnerable	opf

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* Versions before 17.0.5; 17.1.0 to before 17.1.2 Vulnerable ·opf

Remediation

Fix · CNA openproject (opf) Fixed in 17.0.5, 17.1.2

Timeline

2026-10-02 Threatist record created from CVE-2026-27723

References

Advisory 1

https://github.com/opf/openproject/security/advisories/GHSA-9gc6-3xjq-pwc9

Other 2

TI-2019-08673 A SQL injection vulnerability in the activities API in OpenProject before 8.3.2 allows a… CVSS 3.0HIGH 8.1
TI-2026-26047 OpenProject: 2FA OTP Verification Missing Rate Limiting CVSS 3.1HIGH 7.4
TI-2026-29552 OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup CVSS 3.1HIGH 7.1
TI-2023-14850 OpenProject user sessions not terminated after activation of 2FA CVSS 3.1MEDIUM 6.5
TI-2026-18162 OpenProject is Vulnerable to Code Execution in E-Mail function CVSS 4.0HIGH 8.6
TI-2026-26961 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string CVSS 3.1CRITICAL 9.9

See all 36 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences