Nextend Facebook Connect <= 3.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting

2025-09-22 00:00

theviper17y

Strategic Overview

Status

Patched in 3.1.20

Affected PluginNextend Social Login and Register

Affected Version<= 3.1.19

CVSS6.4Medium

CVECVE-2025-58031

View all Nextend Social Login and Register vulnerabilities

Vulnerability Overview

The Nextend Facebook Connect plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.1.20, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2025-58031 https://www.wordfence.com/threat-intel/vulnerabilities/id/a3b5c7ec-eb6a-492e-962f-6ed47ee7f1f2

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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