CVE-2026-28003 HIGH

CVE-2026-28003: WordPress Maspik – Spam blacklist plugin <= 2.9.1 - Cross Site Scripting (XSS) vulnerability

Vendor Yonifre

Product Maspik – Spam blacklist

Weakness CWE-79 · XSS

Published August 13, 2026

Last update August 13, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Cross Site Scripting (XSS) in Maspik – Spam blacklist <= 2.9.1 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Maspik – Spam blacklist versions up to 2.9.1 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts. An attacker can craft a malicious link that, when visited by a site administrator or user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser session.

Potential impact on your site

04Site Impact

Administrators or users who click attacker-supplied links may have their sessions compromised or credentials stolen.

Conditions required to exploit

05Prerequisites

Attacker must trick a user into clicking a malicious link or visiting a crafted page (user interaction required).

Key dates

06Disclosure timeline

August 13, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-28003 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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