WWordPress Vulnerability Database

Community Alert XSS in Weekly Planner Plugin(CVE202512186)

Cross Site Scripting (XSS) in WordPress Weekly Planner Plugin
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Plugin Name WordPress Weekly Planner plugin
Type of Vulnerability Cross-Site Scripting (XSS)
CVE Number CVE-2025-12186
Urgency Low
CVE Publish Date 2025-12-04
Source URL CVE-2025-12186

CVE-2025-12186 — WordPress Weekly Planner plugin: Cross‑Site Scripting (XSS)

As a Hong Kong security practitioner, I present a concise technical summary and pragmatic remediation guidance for CVE-2025-12186. The vulnerability concerns a Cross‑Site Scripting (XSS) issue found in the WordPress Weekly Planner plugin. Published on 2025-12-04, the advisory classifies the urgency as low, but site owners should still assess exposure and act appropriately.

Overview

CVE-2025-12186 is a Cross‑Site Scripting (XSS) vulnerability reported for the WordPress Weekly Planner plugin. XSS flaws occur when untrusted input is included in a web page without proper validation or escaping, allowing an attacker to execute arbitrary script in the context of a victim’s browser.

Technical summary (high level)

  • Type: Cross‑Site Scripting (XSS).
  • Attack vector: Web — the vulnerability is exploitable via crafted input rendered by the plugin into admin or public pages.
  • Impact: Execution of arbitrary JavaScript in the victim’s browser; potential session theft, UI redress, or other client‑side attacks depending on context and privileges.
  • Scope: Plugin-specific; the WordPress core is not implicated by this CVE alone.

Risk assessment

Although the CVE lists the urgency as low, actual risk depends on site configuration:

  • If the plugin renders attacker-controlled content in pages viewed by administrators, the consequences escalate (possible account takeover or administrative actions).
  • If exposure is limited to non‑authenticated public pages, the impact typically remains lower but can still harm site visitors and reputation.

How to detect if you are affected

  • Check installed plugins on each WordPress site for “Weekly Planner” and confirm the version against the vendor/CVE advisory.
  • Inspect plugin settings and any interface that accepts freeform user input (notes, titles, descriptions) — look for HTML/script present in stored fields.
  • Review server and application logs for unusual requests containing