SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' and 'host' Parameters
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'host' parameter in all versions up to, and including, 4.7.42 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The vulnerability is only exploitable when in the system_requirements stage.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15463
- 2026-10-03 Alias added: GHSA-v6v9-r83f-pv2r
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5e392d3c-4a3d-4b5b-a149-70c9b58dca1a?source=cve
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_messages.php#L44
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_admin.php#L863
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3701590%40ssl-zen&new=3701590%40ssl-zen
More sslzen vulnerabilities
- TI-2024-00997 SSL Zen <= 4.5.3 - Unauthenticated Private Keys Access CVSS 3.1MEDIUM 6.5
- TI-2026-22822 WordPress SSL Zen plugin <= 4.7.43 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2022-04562 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVSS 3.1MEDIUM 6.3
- TI-2026-14414 SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' Parameter CVSS 3.1MEDIUM 6.1
- TI-2026-14433 SSL Zen <= 4.7.42 - Authenticated (Administrator+) Path Traversal to Arbitrary File Read via 'file_name' Parameter CVSS 3.1MEDIUM 4.9
Sources
- CVE-2026-15463 · CVE Program
- CVE-2026-15463 · NVD
- FIRST EPSS
- GHSA-v6v9-r83f-pv2r · 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