What is the CVSS score of CVE-2025-5540?

CVE-2025-5540 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Event Rsvp And Simple Event Management CVE-2025-5540

EUVD-2025-28588 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-06-26 security@wordfence.com

WordPress XSS Event Rsvp And Simple Event Management Wordpress Plugin Emarketdesign

6.4

CVSS 3.1 · NVD

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

Analysis Generated

Jul 26, 2026 - 12:48 vuln.today

EUVD ID Assigned

Mar 15, 2026 - 23:54 euvd

EUVD-2025-28588

CVE Published

Jun 26, 2025 - 02:15 nvd

MEDIUM 6.4

DescriptionCVE.org

The Event RSVP and Simple Event Management Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'emd_mb_meta' shortcode in all versions up to, and including, 4.1.0 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.

AnalysisAI

Stored cross-site scripting in the Event RSVP and Simple Event Management Plugin for WordPress up to 4.1.0 allows authenticated attackers with contributor-level permissions to inject arbitrary web scripts via the 'emd_mb_meta' shortcode. Injected scripts execute whenever any user accesses a page containing the malicious shortcode, potentially leading to session hijacking or unauthorized actions. No active exploitation or public exploit code has been identified, and EPSS score is very low (0.04%), indicating limited immediate risk.