Reported vulnerability
Nextend Social Login and Register <= 1.5.5 - Reflected Cross-Site Scripting
Published 24 Jun 2015
Updated 22 Jan 2024
CVE-2015-4413
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 6.1Cross-site scripting (XSS) vulnerability in the new_fb_sign_button function in nextend-facebook-connect.php in Nextend Facebook Connect plugin before 1.5.6 for WordPress allows remote attackers to inject arbitrary web script or HTML via the redirect_to parameter.
Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Nextend Social Login and Register
- Software
- plugin · nextend-facebook-connect
- Affected versions
- Start version unspecified, before 1.5.6
- Fix availability
- Fix available
- Fixed versions
- 1.5.6
Recommended action
Update to version 1.5.6, or a newer patched version
Further references (1)
Data sources and licences
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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
Need help fixing this issue?
Get help checking your site, applying an available update and resolving any problems after updating.
Get help with this issueQuestions about this vulnerability
Which versions of Nextend Social Login and Register are affected?
Wordfence lists these affected versions: Start version unspecified, before 1.5.6. Use the version checker above to compare your installed release with this report.
Is a fix available for Nextend Social Login and Register?
Wordfence reports a fix for this issue in Nextend Social Login and Register. It lists these fixed versions: 1.5.6. Back up your website and test the recommended update before applying it to your live site.
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.
- Nextend Social Login and Register <= 3.1.21 - Cross-Site Request Forgery to Unlink User Social LoginUpdated 28 Nov 2025
- Nextend Facebook Connect <= 3.1.19 - Authenticated (Contributor+) Stored Cross-Site ScriptingUpdated 13 Nov 2025
- Nextend Social Login and Register <= 3.1.12 - Reflected Self-Based Cross-Site Scripting via error_descriptionUpdated 2 Mar 2024
- Nextend Facebook Connect <= 1.5.8 - Cross-Site Request ForgeryUpdated 22 Jan 2024
- Nextend Social Login and Register <= 1.5.0 - Cross-Site ScriptingUpdated 22 Jan 2024