Which products and versions are affected by CVE-2026-0594?

Affected: List Site Contributors (wordpress-plugin). The full list is in the CVE brief.

Is CVE-2026-0594 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-0594 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-0594?

No public exploit code is known.

Is there a fix for CVE-2026-0594?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2026-0594 be patched?

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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Vulnerability Intelligence

CVE-2026-0594

Q: What is CVE-2026-0594?

The List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping.

Medium

List Site Contributors <= 1.1.8 - Reflected Cross-Site Scripting via alpha

Published Jan 14, 2026 · Updated Apr 8, 2026 · Also known as 026a2e0d-4d30-4133-9118-055026aa9f4a

Key Facts

Routine patching

CVE-2026-0594 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting List Site Contributors (wordpress-plugin).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 0.8% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

CVSS v3.1

6.1

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

EPSS (30-day exploit likelihood)

0.8%

Higher than 54.3% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2026-0594 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
List Site Contributorswordpress-plugin	See advisory	n/a

Timeline

Publicly disclosed
Jan 14, 2026
Last updated
Apr 8, 2026

Weakness Type

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

FAQ

Common Questions.

The List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping.
Affected: List Site Contributors (wordpress-plugin). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Is CVE-2026-0594 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.

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