CVE-2026-4920

Next Date <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'default' Shortcode Attribute

Published May 12, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
The Next Date plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'default' shortcode attribute in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Jeremyshapiro
Jeremyshapiro next Date
Wordpress
Wordpress wordpress
Vendors & Products Jeremyshapiro
Jeremyshapiro next Date
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description The Next Date plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'default' shortcode attribute in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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 Next Date <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'default' Shortcode Attribute
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
May 13, 2026, 9:54 AM
Reserved
Mar 26, 2026, 5:47 PM
Status
Deferred
Published
May 12, 2026, 9:16 AM
Modified
Jun 17, 2026, 10:57 AM