Joomla Extension - joomshaper.com - Remote Code Execution in SP Pagebuilder extension for Joomla < 6.6.2
100Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 10epss 88%
from disclosure to weapon1 days
Published on NVDJun 20
1st PoC+1d
VulnCheckJun 15
exploitation probability
88%top 1% of all CVEs
observed exploitation
yesVulnCheck
17 public exploit(s)
Action required by CISAfederal deadline: 2026-07-10
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.
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.
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
Affected products
joomshaper.net · SP Page Builder extension for Joomlapublic PoCs found — 17
githubgithub.com/papageo75/CVE-2026-48908-PoC★ 15githubgithub.com/Jenderal92/CVE-2026-48908★ 3githubgithub.com/0xBlackash/CVE-2026-48908★ 2githubgithub.com/yora1928/CVE-2026-48908-by-yora★ 2githubgithub.com/imXur/CVE-2026-48908-Joomla-SP-Page-Builder-RCE★ 2githubgithub.com/webshellseo8/CVE-2026-48908-POC★ 0githubgithub.com/cazzysoci/cve-2026-48908★ 0githubgithub.com/bayu06802/CVE-2026-48908★ 0githubgithub.com/ogenich/CVE-2026-48908★ 0githubgithub.com/ayiezola/CVE-2026-48908★ 0githubgithub.com/gagaltotal/CVE-2026-48908-SP-Page-Builder-Joomla★ 0githubgithub.com/g0thamRabb1t/CVE-2026-48908-joomla-sp-page-builder-detection★ 0vulncheckvulncheck.com/xdb/e28c557bcdbdunverifiedvulncheckvulncheck.com/xdb/e3958f7a3201unverifiedvulncheckvulncheck.com/xdb/eea8c198a678unverifiedvulncheckvulncheck.com/xdb/dc535d74e124unverifiedvulncheckvulncheck.com/xdb/0efe6575ea41unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://extensions.joomla.org/extension/sp-page-builder/https://mysites.guru/blog/sp-page-builder-zero-day-uploadcustomicon-rce/https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48908https://www.joomshaper.com/forum/question/45152https://www.joomshaper.com/page-builder