CVE-2025-63020 MEDIUM

CVE-2025-63020: WordPress Postie plugin <= 1.9.73 - Cross Site Scripting (XSS) vulnerability

Vendor Wayne Allen
Product Postie
Weakness CWE-79 · XSS
Published December 31, 2025
Last update May 12, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wayne Allen Postie postie allows Stored XSS.This issue affects Postie: from n/a through <= 1.9.73.

Explanation of Vulnerability in Simple Terms

02Summary

Postie versions up to 1.9.73 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability requires user interaction and can affect other users viewing the site. Update to version 1.9.74 or later to remediate.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that executes in other users' browsers when they view affected pages.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other visitors; update Postie immediately to prevent account compromise or data theft.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account and trick a user into visiting a crafted link or page.

Key dates

06Disclosure timeline

December 31, 2025 CVE published
May 12, 2026 Record updated