CVE-2026-15463 json
SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' and 'host' Parameters
published 2026-09-19 50 d ago modified 2026-09-21 48 d ago also EUVD-2026-83546
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 50 d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
- wordfence.com /threat-intel/vulnerabilities/id/5e392d3c-4a3d-4b5b-a149-70c9b58dca1a?source=cve
- plugins.trac.wordpress.org /browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_messages.php#L44
- plugins.trac.wordpress.org /browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_admin.php#L863
- plugins.trac.wordpress.org /changeset?reponame=&old=3701590%40ssl-zen&new=3701590%40ssl-zen
Sources
- CVE List CVE-2026-15463
- NVD CVE-2026-15463
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