Which products and versions are affected by CVE-2026-6433?

Affected: Custom css-js-php (wordpress-plugin) versions >= 2.0.7. The full list is in the CVE brief.

Is CVE-2026-6433 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jun 23, 2026.

Is CVE-2026-6433 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-2026-6433?

No public exploit code is known.

Is there a fix for CVE-2026-6433?

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

How urgently should CVE-2026-6433 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2026-6433

HighExploited

Custom CSS JS PHP <= 2.0.7 - Unauthenticated SQL Injection to RCE

Published May 11, 2026 · Updated May 19, 2026 · Also known as 92544c04-c499-420e-98f4-58834e579725

Key Facts

Patch immediately

CVE-2026-6433 is a high-severity vulnerability (CVSS 7.3 v3.1) affecting Custom css-js-php (wordpress-plugin).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jun 23, 2026. 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: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.3

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

EPSS (30-day exploit likelihood)

0.8%

Higher than 56.0% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

None known

Get the full CVE-2026-6433 brief as a PDF

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

Description

The Custom css-js-php WordPress plugin through 2.0.7 does not properly sanitize user input before using it in a SQL query, and the result is passed to eval(), allowing unauthenticated users to execute arbitrary PHP code on the server.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jun 23, 2026	n/a	Not reported
CIRCL KEV	Oct 2, 2026	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Custom css-js-phpwordpress-plugin	>= 2.0.7	n/a

Timeline

Publicly disclosed
May 11, 2026
Last updated
May 19, 2026
Added to Industry KEV feed
Jun 23, 2026
Added to CIRCL KEV
Oct 2, 2026

Weakness Type

CWE-94 Improper Control of Generation of Code ('Code Injection')

References

1 more references in the full CVE brief

FAQ

Common Questions.

The Custom css-js-php WordPress plugin through 2.0.7 does not properly sanitize user input before using it in a SQL query, and the result is passed to eval(), allowing unauthenticated users to execute arbitrary PHP code on the server.
Affected: Custom css-js-php (wordpress-plugin) versions >= 2.0.7. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jun 23, 2026.
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: patch immediately, because it is listed as exploited in the wild.

Is CVE-2026-6433 Running On Your Attack Surface?

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