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TI-2018-12331 Aliases CVE-2018-17256GHSA-wrrj-r2j4-969w

Cross-site scripting in CyberSecurity Philippines - CERT UmbracoCMS

Priority LOW 23CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Persistent cross-site scripting (XSS) vulnerability in Umbraco CMS 7.12.3 allows authenticated users to inject arbitrary web script via the Header Name of a content (Blog, Content Page, etc.). The vulnerability is exploited when updating or removing public access of a content.

Why it matters now

EPSS 0.00651 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CyberSecurity Philippines - CERTUmbracoCMS7.12.3—No fix listedCNA
—umbraco (NuGet)up to 7.12.3—No fix listedGHSA-wrrj-r2j4-969w
  • UmbracoCMS VendorCyberSecurity Philippines - CERT Affected 7.12.3 Fixed in — No fix listed CNA
  • umbraco (NuGet) Vendor— Affected up to 7.12.3 Fixed in — No fix listed GHSA-wrrj-r2j4-969w

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:umbraco:umbraco_cms:7.12.3:*:*:*:*:*:*:*7.12.3Vulnerableumbraco
  • cpe:2.3:a:umbraco:umbraco_cms:7.12.3:*:*:*:*:*:*:* Versions 7.12.3 Vulnerable ·umbraco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17256
  2. 2026-10-03 Alias added: GHSA-wrrj-r2j4-969w
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Advisory 2

Other 1

  • TI-2025-41183 An arbitrary file upload vulnerability in Umbraco CMS v16.3.3 allows attackers to execute… CVSS 3.1CRITICAL 10.0
  • TI-2012-05477 Umbraco CMS < 4.7.1 codeEditorSave.asmx RCE CVSS 4.0CRITICAL 9.3
  • TI-2021-22392 Umbraco v8.14.1 - 'baseUrl' SSRF CVSS 4.0MEDIUM 6.9
  • TI-2024-36846 A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers… CVSS 3.1MEDIUM 6.5
  • TI-2019-15240 Umbraco CMS 4.11.8 through 7.15.10, and 7.12.4, allows Remote Code Execution by… CVSS 3.1HIGH 7.2
  • TI-2020-04738 Cross-site scripting in Umbraco CMS CVSS 3.1MEDIUM 5.4
See all 56 →

Sources

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