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TI-2026-23468 Aliases CVE-2026-30235

Business Logic Error on OpenProject through hyperlinks in markdown using DOM clobbering

Priority LOW 29CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, this vulnerability occurs due to improper validation of OpenProject’s Markdown rendering, specifically in the hyperlink handling. This allows an attacker to inject malicious hyperlink payloads that perform DOM clobbering. DOM clobbering can crash or blank the entire page by overwriting native DOM functions with HTML elements, causing critical JavaScript calls to throw runtime errors during application initialization and halt further execution. This vulnerability is fixed in 17.2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00374 31st percentileScored 2026-11-07
Fix Fixed openproject (opf): 17.2.0

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

VendorProductAffected versionsFixed inStatusSource
opfopenprojectbefore 17.2.017.2.0Patch availableCNA
  • openproject Vendoropf Affected before 17.2.0 Fixed in 17.2.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*before 17.2.0Vulnerableopf
  • cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* Versions before 17.2.0 Vulnerable ·opf

Remediation

  • Fix · CNA openproject (opf) Fixed in 17.2.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30235

References

Advisory 1

  • 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