CVE-2026-48908 JoomShaper SP Page Builder: dangerous file upload
In plain words: The program accepts files it should refuse, such as programs disguised as ordinary uploads. The attacker can place and run their own tools on the server.
Confirmed exploited by CISA on · US federal patch deadline Jul 10, 2026
What to do
- Install JoomShaper's security update for SP Page Builder. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability
- Product
- JoomShaper SP Page Builder
- CISA description
- JoomShaper SP Page Builder contains an unrestricted upload of file with dangerous type vulnerability that allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code.
- Type of flaw
- Dangerous file upload (CWE-434)
- Confirmed exploited
- Jul 7, 2026
- US federal patch deadline
- Jul 10, 2026
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Answering about CVE-2026-48908 ·
Questions about CVE-2026-48908
Is CVE-2026-48908 being exploited?
Yes. CISA added CVE-2026-48908 to its Known Exploited Vulnerabilities catalog on Jul 7, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2026-48908?
Install JoomShaper's security update for SP Page Builder. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2026-48908?
Only if you use JoomShaper SP Page Builder. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.