Reported vulnerability
SSL Zen — SSL Certificate Installer & HTTPS Redirects <= 4.7.43 - Reflected Cross-Site Scripting
Published 17 Aug 2026
Updated 3 Sept 2026
CVE-2026-28569
Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.
Does this affect my version?
Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.
Wordfence advisory
medium · CVSS 6.1The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 4.7.43 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.
Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSL Zen — SSL Certificate Installer & HTTPS Redirects
- Software
- plugin · ssl-zen
- Affected versions
- Start version unspecified, through 4.7.43
- Fix availability
- No fix reported
- Fixed versions
- No fixed version specified
Recommended action
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Further references (1)
Data sources and licences
Copyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
Read licence termsCopyright 1999-2026 The MITRE Corporation
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
Read licence termsSource: Wordfence
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Get help with this issueQuestions about this vulnerability
Which versions of SSL Zen — SSL Certificate Installer & HTTPS Redirects are affected?
Wordfence lists these affected versions: Start version unspecified, through 4.7.43. Use the version checker above to compare your installed release with this report.
Is a fix available for SSL Zen — SSL Certificate Installer & HTTPS Redirects?
Wordfence does not report a fix for this issue in SSL Zen — SSL Certificate Installer & HTTPS Redirects. Read the source report and ask the developer or your website support team what action to take.
Where can I find my installed plugin version?
In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.
Does an affected version mean my website has been hacked?
An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.
Other reports for the same product
These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.
- SSL Zen <= 4.7.42 - Authenticated (Administrator+) Path Traversal to Arbitrary File Read via 'file_name' ParameterUpdated 25 Sept 2026
- SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' ParameterUpdated 25 Sept 2026
- SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' and 'host' ParametersUpdated 19 Sept 2026
- SSL Zen — SSL Certificate Installer & HTTPS Redirects < 4.7.40 - Authenticated (Subscriber+) Information ExposureUpdated 15 Sept 2026
- SSL Zen – Free Let's Encrypt SSL Certificate & HTTPS/SSL Redirect WordPress Plugin <= 4.5.0 - Sensitive Information ExposureUpdated 16 May 2024