WordPress security changelog
HIGH CVE-2026-81292 Deferred

Simple Payment permits unauthenticated cross-site scripting

Simple Payment through 2.5.1 allows unauthenticated attacker-controlled input to reach browser output without adequate neutralization. A victim who interacts with the affected payment output can execute script in the site's origin.

CVE / CNA score 7.1 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Simple Payment
Plugin slug
simple-payment
Affected
n/a through 2.5.1
Safe version
2.5.2
Published
Sep 03, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Sep 03, 2026 and is one of 7 known issues for this plugin.

Update, patch or deactivate.

Update to 2.5.2 or later and review payment content and privileged activity after affected output was opened.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Unauthenticated Cross Site Scripting (XSS) in Simple Payment <= 2.5.1 versions.

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

Primary and upstream sources