GutenKit 2.5.0 - 2.5.4 - Author+ Stored XSS via Page Settings Custom CSS
CVSS score
6.8
EPSS probability
%0.2
Risk score
0.0
Published
1 d ago
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Impact on My Inventory
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
The GutenKit WordPress plugin versions 2.5.0‑2.5.4 allow users with Author role or higher to inject JavaScript via custom CSS in page settings, leading to code execution in visitors' browsers. Affected sites run WordPress below 7.0. CVSS 6.8 (MEDIUM) and no active exploitation is recorded.
Stored XSS can steal visitor sessions, alter page content, and enable malicious redirects.
What should be done?
- Upgrade GutenKit to 2.5.5 or later
- Update WordPress to version 7.0 or newer
- Review and restrict Author role permissions
- Harden input validation and WAF rules
- Monitor vendor security advisories
Chain of evidence and sources
CVE-2026-114427, GutenKit eklentisinde yazar ve üzeri kullanıcıların özel CSS aracılığıyla depolanmış XSS istismarına izin verir.
Vulnerabilite, GutenKit 2.5.0‑2.5.4 sürümlerini ve WordPress 7.0 altında çalışan siteleri etkiler.
CVE, CISA KEV listesinde yer almıyor; aktif istismar kaydı bulunmamaktadır.
Show the technical text from the sources
The GutenKit WordPress plugin before 2.5.5 does not properly sanitize custom CSS saved against a post before printing it inside an inline style block on the published page, allowing users with the Author role and above to break out of the style element and store JavaScript that executes in the browser of any visitor who views the post. Exploitation affects sites running WordPress below 7.0.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-79
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-114427 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Unknown | GutenKit | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.8 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H | CVE ADP |
| 6.8 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-114427 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-114427 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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