CVE-2025-4126

MEDIUM EPSS 15.2%

Published May 15, 20251y ago · Modified Jun 17, 20261w ago

6.4 CVSS 3.1

Medium

Published May 15, 2025 1y ago

Last Modified Jun 17, 2026 1w ago

Description

The EG-Series plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [series] shortcode in all versions up to, and including, 2.1.1 due to insufficient input sanitization and output escaping on user supplied attributes in the shortcode_title function. This makes it possible for authenticated attackers - with contributor-level access and above, on sites with the Classic Editor plugin activated - to inject arbitrary JavaScript code in the titletag attribute that will execute whenever a user access an injected page.

CVSS Details

Base Score

6.4

Exploitability

3.1

Impact

2.7

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

15.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-80

References 2

plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/eg-series/trunk/lib/eg-plugin.inc.php#L546
wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ab518a1b-304d-4b93-b807-65ef3941dd47?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.