Description
The Qzzr Shortcode Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'qzzr' shortcode in all versions up to, and including, 1.0.1. This is due to insufficient input sanitization and output escaping on the 'quiz' attribute. 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.
Published: 2025-10-31
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting
Action: Immediate Patch
AI Analysis

Impact

The Qzzr Shortcode Plugin for WordPress allows arbitrary JavaScript to be stored via the 'quiz' attribute of the 'qzzr' shortcode. This stored cross‑site scripting flaw means that a page containing the injected code will execute the attacker’s script in the context of any user who visits that page, potentially exposing session cookies or enabling broader malicious actions. The weakness is a classic input validation error categorized as CWE‑79.

Affected Systems

All releases of the Qzzr Shortcode Plugin up to and including version 1.0.1, used within any WordPress site.

Risk and Exploitability

The CVSS score of 6.4 indicates moderate severity, and the EPSS score of less than 1% suggests a low probability of widespread exploitation at this time. The vulnerability is not listed in CISA’s KEV catalog. Exploitation requires an authenticated user with contributor level or higher, making it a privilege‑based attack that can be carried out by anyone with such access on a partnered site.

Generated by OpenCVE AI on April 21, 2026 at 02:00 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Qzzr Shortcode Plugin to a version newer than 1.0.1 or remove the plugin entirely if an update is not available.
  • If an upgrade is not possible, deactivate or uninstall the plugin until a fix is released to prevent further use.
  • Restrict contributor‑level access to the site or modify WordPress roles to deny editing capabilities that would allow injection of the vulnerable shortcode.

Generated by OpenCVE AI on April 21, 2026 at 02:00 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 31 Oct 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 31 Oct 2025 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress

Fri, 31 Oct 2025 03:00:00 +0000

Type Values Removed Values Added
Description The Qzzr Shortcode Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'qzzr' shortcode in all versions up to, and including, 1.0.1. This is due to insufficient input sanitization and output escaping on the 'quiz' attribute. 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.
Title Qzzr Shortcode Plugin <= 1.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T17:17:16.984Z

Reserved: 2025-10-15T15:11:05.753Z

Link: CVE-2025-11806

cve-icon Vulnrichment

Updated: 2025-10-31T17:01:46.005Z

cve-icon NVD

Status : Deferred

Published: 2025-10-31T03:15:34.367

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-11806

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-21T02:15:06Z

Weaknesses