WP Post Signature

WP Post Signature has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it remains unpatched as of September 2026. Their average CVSS score is 6.4, and the most serious one scores 6.4 out of 10.

The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).

The one issue recorded for WP Post Signature has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2025.

All of these findings were reported by Nabil Irawan. WP Post Signature is installed on roughly 1,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 5.8.15.

Strategic Overview

Avg CVSSMedium

6.4/ 10

Patch Coverage0%

Open

Fixed

Get automatic notifications for all WP Post Signature vulnerabilities before they are exploited.

Most severe open issueCVSS 6.4CVE-2025-62124

Post Signature <= 0.4.1 - Authenticated (Author+) Stored Cross-Site Scripting

Read the full analysis

Vulnerability Records

1 records


2025-12-31 00:00	Post Signature <= 0.4.1 - Authenticated (Author+) Stored Cross-Site Scripting WP Post Signature <= 0.4.1	`CVE-2025-62124`	6.4 Medium	Nabil Irawan	No

Showing 1–1 of 1 reports

Plugin Profile

Latestv0.4.1

WP Post Signature

Author

Soli

3.8(13)

76/100

Last Updated

2021-09-16 (5y ago)

Active Installs

1,000+

Downloads

52,986

Requires WP

3.0+

Requires PHP

Tested up to

WP 5.8.15

Created

2011-05-09 (16y ago)

This plugin allows you to append a signature after every post. Some variables can be used, such as %post_title%, %post_link%, %bloginfo_name%, %bloginfo_url%, and so on. It supports multiuser.

View on WordPress.org