CVE-2026-48908KEV · OVERDUECWE-434unrestricted-file-upload

JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability

Critical · published June 20, 2026

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.8th percentile for exploit probability.

105
days past CISA
deadline
CVSS v3.1
9.8
EPSS
89%
Percentile
99.8
In the wild
Confirmed
What it is

🚨 Unauthenticated users can upload any files they want through SP Page Builder in Joomla, opening the door to some seriously nasty PHP execution! 🔥 Consider this vulnerability like a restaurant with an open kitchen — anyone can walk in and whip up their own dish without the chef checking ingredients. This means attackers can upload harmful files and run them without any oversight. If an attacker exploits this flaw, they could upload malicious PHP files that let them take control of your server, steal sensitive data, or even bring your site down entirely. It's absolutely devastating for any Joomla site, leading to potential data breaches and a complete loss of trust from users.

Put simply

Consider this vulnerability like a restaurant with an open kitchen — anyone can walk in and whip up their own dish without the chef checking ingredients. This means attackers can upload harmful files and run them without any oversight. This vulnerability allows unauthenticated users to bypass file upload restrictions within SP Page Builder, enabling them to upload and execute arbitrary PHP code on the server.

What to do

If an attacker exploits this flaw, they could upload malicious PHP files that let them take control of your server, steal sensitive data, or even bring your site down entirely. It's absolutely devastating for any Joomla site, leading to potential data breaches and a complete loss of trust from users. To protect your site, immediately update SP Page Builder to the latest version. Additionally, implement strict file upload validation and sanitize any uploaded files. Don't skip these steps — the risk is too high! You can tackle this! Follow these steps to secure your Joomla site and keep those cyber villains at bay. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.88512 · 99.8th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-06-20T17:16Z
KEV added
2026-07-07 · due 2026-07-10
Affected products (1)
ProductVersionsFixed in
ollyo/sp_page_builder< 6.6.26.6.2
References (5)
EPSS history
Timeline
  • 27 SEP 03:26Z
    EPSS moved 15% → 89%
    epss
  • 26 SEP 03:25Z
    EPSS moved 15% → 89%
    epss
  • 07 JUL 00:00Z
    Added to CISA KEV — remediate by Jul 10
    kev
  • 20 JUN 11:57Z
    Joomla Extension - joomshaper.com - Remote Code Execution in SP Pagebuilder extension for Joomla < 6.6.2
    cvelistv5