Joomla Extension - joomshaper.com - Remote Code Execution in SP Pagebuilder extension for Joomla < 6.6.2
Published Jun 20, 2026 ·Due Jul 10, 2026
10.0
CRITICALCVSS 4.0
EPSS 88.51%
Description
A vulnerability in SP Page Builder for Joomla allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code.
Affected products
-
- Version 1.0.0-6.6.1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Joomshaper.net | SP Page Builder extension for Joomla | unaffected |
|
- < 6.6.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
Date Added
Jul 7, 2026
Patch Due
Jul 10, 2026
Required Action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Jul 7, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Jun–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 88.51% (0.88512) | 99.77th | v5 (v2026.06.15) |
| Sep 20, 2026 | 15.09% (0.15086) | 96.57th | v5 (v2026.06.15) |
| Aug 24, 2026 | 14.82% (0.14824) | 96.42th | v5 (v2026.06.15) |
| Jul 24, 2026 | 88.13% (0.88130) | 99.75th | v5 (v2026.06.15) |
| Jun 23, 2026 | 0.61% (0.00614) | 44.74th | v5 (v2026.06.15) |
References (5)
- https://extensions.joomla.org/extension/sp-page-builder/ patchProduct
- https://mysites.guru/blog/sp-page-builder-zero-day-uploadcustomicon-rce/ third-party-advisoryThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48908 government-resourceUS Government Resource
- https://www.joomshaper.com/forum/question/45152 vendor-advisoryIssue Tracking
- https://www.joomshaper.com/page-builder product
| Link | Providers | Tags |
|---|---|---|
| https://extensions.joomla.org/extension/sp-page-builder/ | patchProduct | |
| https://mysites.guru/blog/sp-page-builder-zero-day-uploadcustomicon-rce/ | third-party-advisoryThird Party Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48908 | government-resourceUS Government Resource | |
| https://www.joomshaper.com/forum/question/45152 | vendor-advisoryIssue Tracking | |
| https://www.joomshaper.com/page-builder | product |
Change history (0)
No recorded changes yet.