Patchfirst
CVE-2026-48908 KEVPublic exploit Critical · 9.8 EPSS 88.5%

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

JoomShaper · SP Page Builder

Summary

The JoomShaper SP Page Builder extension for Joomla contains an unrestricted file upload flaw classified as CWE "Unrestricted Upload of File with Dangerous Type". An unauthenticated remote attacker can upload arbitrary files to the affected component without requiring authentication or any user interaction, and can thereby upload and execute PHP code on the server.

Official description · NVD

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.

Breakdown
74.8 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited 5 days before it was disclosed. Public exploit code (PoC-in-GitHub) appeared 2 days after disclosure.

  1. First seen exploitedVulnCheck KEV evidence5 days before
  2. Disclosedday 0
  3. Public exploit codePoC-in-GitHub+2 days
  4. EU database marks exploited+16 days
  5. Added to CISA KEV+17 days

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Exploit Public-Facing Application T1190 Medium
AI mapping from the description · how it is exploited

Unauthenticated upload via public-facing web application

allows unauthenticated users to upload arbitrary files
From the official description (NVD) Original (opens in a new tab) ↗

ExecutionTA0002

Command and Scripting Interpreter T1059 Medium
AI mapping from the description · primary impact

Uploaded PHP code is executed on the server

ultimately resulting in the upload and execution of PHP code
From the official description (NVD) Original (opens in a new tab) ↗

Detection

0 rules for this CVE · 244 general rules for its techniques

Rules for this CVE

0 that reference CVE-2026-48908 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 39 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

5 links, grouped by NVD tag
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