CVE-2014-8800

Nextend Facebook Connect <1.5.1 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2014-8800. PoCs published by Kacper Szurek.

AI-analyzed exploit summary This exploit demonstrates a Cross-Site Scripting (XSS) vulnerability in Nextend Facebook Connect 1.4.59 due to improper input sanitization in the plugin settings update functionality. The PoC provides a form that submits malicious JavaScript payload via the 'fb_login_button' parameter, which is then stored and executed in the context of the application.

Description

Cross-site scripting (XSS) vulnerability in nextend-facebook-settings.php in the Nextend Facebook Connect plugin before 1.5.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the fb_login_button parameter in a newfb_update_options action.

Exploits (1)

exploitdb WORKING POC
by Kacper Szurek · textwebappsphp
https://www.exploit-db.com/exploits/35439

This exploit demonstrates a Cross-Site Scripting (XSS) vulnerability in Nextend Facebook Connect 1.4.59 due to improper input sanitization in the plugin settings update functionality. The PoC provides a form that submits malicious JavaScript payload via the 'fb_login_button' parameter, which is then stored and executed in the context of the application.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Nextend Facebook Connect 1.4.59
No auth needed
Prerequisites: Access to the plugin's settings update endpoint
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/show/osvdb/115231
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/35439

Scores

EPSS 0.0377
EPSS Percentile 88.5%

Details

CWE
CWE-79
Status published
Products (1)
nextendweb/nextend_facebook_connect < 1.5.0
Published Dec 05, 2014
Tracked Since Feb 18, 2026