What is the CVSS score of CVE-2023-2406?

CVE-2023-2406 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: 0.1%.

Is there a public PoC exploit available for CVE-2023-2406?

Yes, a public proof-of-concept exploit is available for CVE-2023-2406. Prioritise patching immediately. EPSS: 0.1%.

Event Registration Calendar By Vcita CVE-2023-2406

MEDIUM

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

2023-06-03 security@wordfence.com

WordPress XSS Event Registration Calendar By Vcita Online Payments Get Paid With Paypal Square Stripe

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

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

Lifecycle Timeline

PoC Detected

Apr 08, 2026 - 17:16 vuln.today

Public exploit code

CVE Published

Jun 03, 2023 - 05:15 nvd

MEDIUM 6.4

DescriptionCVE.org

The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments - Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with the edit_posts capability, such as contributors and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments - Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Stored. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments - Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with the edit_posts capability, such as contributors and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected products include: Vcita Event Registration Calendar By Vcita, Vcita Online Payments - Get Paid With Paypal\, Square \& Stripe.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.