CVE-2015-4557

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-04-12 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in the new_Twitter_sign_button function in nextend-Twitter-connect.php in the Nextend Twitter Connect plugin before 1.5.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the redirect_to parameter. NOTE: this may overlap CVE-2015-4413.

Affected products

nextendweb Nextend Twitter Connect: before 1.5.2 — fixed in 1.5.2

How to fix

Upgrade to a fixed version: nextendweb Nextend Twitter Connect 1.5.2. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/132432/WordPress-Nextend-Twitter-Connect-1.5.1-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2015/Jun/71
http://www.securityfocus.com/bid/75395
https://plugins.trac.wordpress.org/changeset/1178744/nextend-twitter-connect
http://packetstormsecurity.com/files/132432/WordPress-Nextend-Twitter-Connect-1.5.1-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2015/Jun/71
http://www.securityfocus.com/bid/75395
https://plugins.trac.wordpress.org/changeset/1178744/nextend-twitter-connect

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