Page Builder CK – critical upload flaw, actively exploited
Versi aman: Page Builder CK 3.6.0 or newer · via JoomlaCK
Sekilas info
com_pagebuilderck)Apa masalahnya?
Page Builder CK is a page builder for Joomla from the French vendor JoomlaCK. It has been around for years and comes in a free edition too, so it is widely deployed – often on sites without dedicated technical support.
One of its upload functions checked neither a login, nor permissions, nor the file type. An attacker could therefore place an executable file on the server without any access at all and then call it – which amounts to a full takeover of the site (CVE-2026-56290, severity 10 out of 10).
The US cyber security agency CISA has listed this flaw in its catalogue of actively exploited vulnerabilities since 7 July 2026. That is not a theoretical rating: being added there requires evidence of real attacks.
An important distinction: Page Builder CK (com_pagebuilderck) is not the same as SP Page Builder by JoomShaper (com_sppagebuilder). Both are page builders, both had critical flaws – but they are different products with different version numbers. Check in your back end which one you run.
Apakah situs Anda terdampak? – Begini cara memeriksanya
- Open the back end
Sign in to the Joomla administrator.
- Find the extension
Open Extensions›Manage›Manage and filter for "Page Builder CK" or
pagebuilderck. - Assess the version
If the version is below 3.6.0, the site is vulnerable. In the Joomla 4 line 3.4.10 is the safe release, in the Joomla 3 line 3.1.1.
- Look for signs of a break-in
Search for unknown
.phpfiles in the extension’s media and upload folders, and for super user accounts you did not create yourself.
Cara menutup celah keamanan ini
- Before updating: back up
Back up files and database before you update, so you can return if anything goes wrong.
- Open the update centre
Go to System›Update›Extensions and click Check for updates.
- Update Page Builder CK
Select the entry and update to 3.6.0 or newer.
- Verify the version
Confirm that the new version is actually installed.
Sumber unduhan resmi: via JoomlaCK. Pastikan Anda menggunakan minimal versi Page Builder CK 3.6.0 or newer.
Apakah situs Anda sudah diserang?
Butuh bantuan membersihkan situs Anda? Temukan tenaga ahli yang kompeten di Direktori Penyedia Layanan Joomla.
Sumber & bacaan lanjutan
- CVE-2026-56290 – official recordSeverity, affected versions
- CISA – Known Exploited Vulnerabilities CatalogAdded 7 July 2026
- JoomlaCK (vendor)Source of the safe version
Informasi resmi dari masing-masing pengembang selalu menjadi acuan utama. Halaman ini merangkum informasi yang tersedia untuk umum secara netral.
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