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CVE-2026-77993

Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5

MEDIUM
5.3
CVSS Score
Published: August 24, 2026 at 08:00 AM UTC
Updated: October 23, 2026 at 10:10 PM UTC
1 product affected across 1 vendorPage Builder Ck

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a reflected XSS via the iscontenttype parameter.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Product
Source: cverecord
https://www.joomlack.fr/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMJoomla
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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