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Back to active CVEs
High · CVSS 8.8CVE-2026-84673

CISA ADP VulnrichmentCVE-2026-84673

Answer in brief

CVE-2026-84673 records a High severity (CVSS 8.8) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Jenkins Project/Jenkins Customizable Header Plugin (generic), Jenkins Project/Jenkins Customizable Header Plugin (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 2, 2026Updated Sep 3, 2026Source checked Oct 17, 2026First seen by HOL Sep 2, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Jenkins Project/Jenkins Customizable Header Plugin (generic), Jenkins Project/Jenkins Customizable Header Plugin (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Jenkins Project/Jenkins Customizable Header Plugingeneric0Not reported
Jenkins Project/Jenkins Customizable Header Plugingeneric>=0 <=295.v2544b_ca_19b_97Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Jenkins Project/Jenkins Customizable Header Plugin, Jenkins Project/Jenkins Customizable Header Plugin.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 2, 2026

Sources and claim methodology

  • Source referencejenkins.io
Upstream source description

Jenkins Customizable Header Plugin 295.v2544b_ca_19b_97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • phpMyFAQ 3.2.1 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Stored XSS via iframe data: URIAlso CWE-79
  • phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG DTD Entity BypassAlso CWE-79
  • Coder before 2.34.2 Stored HTML Injection via Appearance SettingsAlso CWE-79
  • WordPress SMS Alert Order Notifications plugin <= 4.0.1 - Broken Access Control vulnerabilitySame generic ecosystem
  • phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta TOTP 2FA Bypass via SSO CallbacksSame generic ecosystem
  • phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Missing Current-Password Step-Up on E-mail Change Enables Account TakeoverSame generic ecosystem

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 17, 2026
References
1 linked source
Open source record