Skip to main content

The Events Calendar CVE-2025-5144

| EUVDEUVD-2025-18097 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2025-06-11 security@wordfence.com
6.4
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

Attackers can steal session cookies, redirect users to malicious sites, deface content, or perform actions on behalf of authenticated users. With a CVSS score of 6.4 (MEDIUM), this represents a moderate risk.

Exploit ScenarioDerived

An attacker injects a JavaScript payload into a vulnerable input field. When another user views the page, the script executes in their browser, stealing their session token.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 14, 2026

The The Events Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-date-*’ parameters in all versions up to, and including, 6.13.2 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.

Earlier versions of this analysis (1)
v1 Mar 14, 2026 - 21:09 CVSS 6.4

RemediationAI

A vendor patch is available — apply it immediately. Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

Affected VersionsENISA

The Events Calendar * ≤6.13.2

Affected Packages

euvd the_events_calendar no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

Know when The Events Calendar gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch released
Mar 14, 2026 - 21:09 nvd
Patch available
CVE Published
Jun 11, 2025 - 13:15 nvd
MEDIUM 6.4

Executive ViewAI

Why It Matters

Organizations using all should be aware of moderate risk from CVE-2025-5144, a cross-site scripting vulnerability rated CVSS 6.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.

Threat Intelligence Overview

EPSS Score
0.1%
Top 80% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

CVE-2026-78006 CRITICAL POC
9.8 Sep 12

Remote code execution in The Events Calendar plugin for WordPress (StellarWP) affects all versions up to and including 6

CVE-2024-4180 CRITICAL POC
9.1 Jun 04

The Events Calendar WordPress plugin before 6.4.0.1 does not properly sanitize user-submitted content when rendering som

CVE-2023-6203 HIGH POC
7.5 Dec 18

The Events Calendar WordPress plugin before 6.2.8.1 discloses the content of password protected posts to unauthenticated

CVE-2026-84740 MEDIUM POC
6.5 Oct 02

Unauthenticated shortcode injection in The Events Calendar WordPress plugin before 6.17.5.1 allows remote attackers to t

CVE-2024-1295 MEDIUM POC
6.5 Jun 14

The events-calendar-pro WordPress plugin before 6.4.0.1, The Events Calendar WordPress plugin before 6.4.0.1 does not pr

CVE-2026-78159 CRITICAL
9.8 Sep 12

Remote code execution in The Events Calendar WordPress plugin (StellarWP) through version 6.17.3 lets unauthenticated at

CVE-2026-95606 CRITICAL
9.8 Oct 07

PHP object injection in The Events Calendar WordPress plugin (all versions through 6.17.4, published by Liquid Web / Ste

CVE-2026-78265 CRITICAL
9.8 Aug 24

PHP Object Injection in the WordPress plugin The Events Calendar (all versions up to and including 6.17.2) allows unauth

CVE-2024-8275 CRITICAL
9.8 Sep 25

The The Events Calendar plugin for WordPress is vulnerable to SQL Injection via the 'order' parameter of the 'tribe_has_

CVE-2026-49772 CRITICAL
9.3 Jun 16

Blind SQL injection in The Events Calendar WordPress plugin (versions 6.15.12 through 6.16.2) by Liquid Web / StellarWP

CVE-2026-13390 MEDIUM POC
5.3 Jul 27

Integrity bypass in The Events Calendar WordPress plugin allows unauthenticated attackers to mark existing Event Aggrega

CVE-2024-5333 MEDIUM POC
5.3 Dec 16

The Events Calendar WordPress plugin before 6.8.2.1 is missing access checks in the REST API, allowing for unauthenticat

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy