CVE-2026-48908
JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability
JoomShaper SP Page Builder
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 7 July 2026. US federal agencies were required to remediate it by 10 July 2026.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 88.1%, which is higher than 99.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2026-48908 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2026-48908.
What does CVE-2026-48908 affect?
CVE-2026-48908 affects JoomShaper SP Page Builder. 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.
How severe is CVE-2026-48908?
CVE-2026-48908 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 88.1%, higher than 99.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 10 July 2026.
How should organisations respond to CVE-2026-48908?
Apply the vendor patch for JoomShaper SP Page Builder as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.