CVE-2026-77993 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

joomlack.fr

Page Builder CK extension for Joomla

unaffected

Version	Status	Constraints
`1.0.0-3.6.4`	affected	—

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.joomlack.fr/

History

Mon, 24 Aug 2026 08:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5
Weaknesses		CWE-79
References		https://www.joomlack.fr/
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-08-24T08:00:44.698Z

Updated: 2026-08-24T08:00:44.698Z

Reserved: 2026-08-21T19:05:09.013Z

Link: CVE-2026-77993

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-24T08:16:33.677

Modified: 2026-08-24T08:16:33.677

Link: CVE-2026-77993

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-24T09:30:15Z

Weaknesses

CWE-79

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