CVE-2023-51374

MEDIUM 5.9

WordPress ZeroBounce Email Verification & Validation Plugin <= 1.0.11 is vulnerable to Cross Site Scripting (XSS)

CVSS Score

5.9

EPSS Score

0.0%

EPSS Percentile

0th

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ZeroBounce ZeroBounce Email Verification & Validation allows Stored XSS.This issue affects ZeroBounce Email Verification & Validation: from n/a through 1.0.11.

CWE	CWE-79
Vendor	zerobounce
Product	zerobounce email verification & validation
Published	Dec 29, 2023
Last Updated	Apr 28, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

ZeroBounce / ZeroBounce Email Verification & Validation

n/a ≤ 1.0.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/vulnerability/zerobounce/wordpress-zerobounce-email-verification-validation-plugin-1-0-11-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

DoYeon Park / p6rkdoye0n (Patchstack Alliance)