Cross-site scripting (XSS) vulnerability in cPanel 6.4.2 allows remote attackers to…
Priority LOW 33Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Cross-site scripting (XSS) vulnerability in cPanel 6.4.2 allows remote attackers to insert arbitrary HTML and possibly gain cPanel administrator privileges via script in a URL that is logged but not properly quoted when displayed via the (1) Error Log or (2) Latest Visitors screens.
Why it matters now
EPSS 0.01647 76th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cpanel:cpanel:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:5.3:*:*:*:*:*:*:* | 5.3 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.2:*:*:*:*:*:*:* | 6.2 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.4:*:*:*:*:*:*:* | 6.4 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.4.1:*:*:*:*:*:*:* | 6.4.1 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.4.2:*:*:*:*:*:*:* | 6.4.2 | Vulnerable | Cpanel |
| cpe:2.3:a:cpanel:cpanel:6.4.2_stable_48:*:*:*:*:*:*:* | 6.4.2_stable_48 | Vulnerable | Cpanel |
- cpe:2.3:a:cpanel:cpanel:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.4.1:*:*:*:*:*:*:* Versions 6.4.1 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.4.2:*:*:*:*:*:*:* Versions 6.4.2 Vulnerable ·Cpanel
- cpe:2.3:a:cpanel:cpanel:6.4.2_stable_48:*:*:*:*:*:*:* Versions 6.4.2_stable_48 Vulnerable ·Cpanel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0521
- 2026-10-03 Alias added: GHSA-g78q-qwhg-6p5x
References
More Cpanel vulnerabilities
- TI-2026-30342 WebPros cPanel and WHM Authentication Bypass via Login Flow KEVCVSS 4.0CRITICAL 9.3
- TI-2026-46792 Eval injection in cPanel 11.138.0.0 and earlier allows remote authenticated users to execute arbitrary code as root. CVSS 4.0HIGH 8.7
- TI-2004-01645 The "Allow cPanel users to reset their password via email" feature in cPanel 9.1.0 build… CVSS 2.0HIGH 10.0
- TI-2023-13860 An issue was discovered in cPanel before 11.109.9999.116. CVSS 3.1MEDIUM 6.1
- TI-2003-01325 guestbook.cgi in cPanel 5.0 allows remote attackers to execute arbitrary commands via the template parameter. CVSS 2.0HIGH 10.0
- TI-2004-01646 The login page for cPanel 9.1.0, and possibly other versions, allows remote attackers to… CVSS 2.0HIGH 10.0
Sources
- CVE-2003-0521 · CVE Program
- CVE-2003-0521 · NVD
- FIRST EPSS
- GHSA-g78q-qwhg-6p5x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences