Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post event-post allows DOM-Based XSS.This issue affects Event post: from n/a through <= 5.9.11.
Published: 2025-04-22
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The mentioned plugin implements DOM‑based cross‑site scripting due to improper input neutralization. An attacker can construct a malicious payload that is reflected by the browser’s DOM and executed as JavaScript in the victim’s context, potentially allowing credential theft, session hijacking, or defacement. This potential impact is inferred from typical XSS consequences and is not explicitly stated in the CVE description.

Affected Systems

The vulnerability exists in the WordPress Event post plugin developed by Bastien Ho, affecting every installation of the plugin up to and including version 5.9.11. Any WordPress site that includes this plugin before the patch is susceptible.

Risk and Exploitability

The CVSS score of 6.5 classifies the bug as a moderate‑severity issue. An EPSS score of less than 1 % indicates that, at the present time, the probability of this flaw being actively exploited is low. The plugin is not listed in the CISA KEV catalog. Exploitation requires the victim to load a page rendered by the compromised plugin or interact with input fields that are not properly sanitized, implying a client‑side attack vector that depends on user interaction or phishing; this inference comes from the fact that the flaw is DOM‑based, though the exact method is not detailed in the CVE entry.

Generated by OpenCVE AI on May 1, 2026 at 09:19 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Event post plugin to version 5.9.12 or newer.
  • If upgrading is not immediately possible, disable or delete the plugin from the WordPress installation.
  • Consider implementing a robust content‑security‑policy header that blocks execution of unauthorized scripts to reduce the risk of XSS if the plugin remains installed.

Generated by OpenCVE AI on May 1, 2026 at 09:19 UTC.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-12315 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post allows DOM-Based XSS. This issue affects Event post: from n/a through 5.9.11.
History

Thu, 23 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}


Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post allows DOM-Based XSS. This issue affects Event post: from n/a through 5.9.11. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post event-post allows DOM-Based XSS.This issue affects Event post: from n/a through <= 5.9.11.
Title WordPress Event post <= 5.9.11 - Cross Site Scripting (XSS) Vulnerability WordPress Event post plugin <= 5.9.11 - Cross Site Scripting (XSS) Vulnerability
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Wed, 30 Apr 2025 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Avecnous
Avecnous event Post
CPEs cpe:2.3:a:avecnous:event_post:*:*:*:*:*:wordpress:*:*
Vendors & Products Avecnous
Avecnous event Post

Tue, 22 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 22 Apr 2025 10:00:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post allows DOM-Based XSS. This issue affects Event post: from n/a through 5.9.11.
Title WordPress Event post <= 5.9.11 - Cross Site Scripting (XSS) Vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L'}


Subscriptions

Avecnous Event Post
cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-04-28T16:12:36.531Z

Reserved: 2025-04-22T08:46:38.826Z

Link: CVE-2025-46228

cve-icon Vulnrichment

Updated: 2025-04-22T17:01:20.624Z

cve-icon NVD

Status : Modified

Published: 2025-04-22T10:15:15.800

Modified: 2026-04-23T15:29:54.577

Link: CVE-2025-46228

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-01T09:30:14Z

Weaknesses