# CVE-2026-48908: JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type

> Unauthenticated attackers can upload and execute arbitrary PHP code via the SP Page Builder extension for Joomla.

- **Severity:** Critical 10.0 (`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`)
- **Exploited in the wild:** Yes, since 7 Jul 2026 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jun 2026
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-8fwr-8fxr-8v2p

## What is CVE-2026-48908?

CVE-2026-48908 is a critical vulnerability in joomshaper.net SP Page Builder extension for Joomla, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2026-48908?

It affects 1 product.


Products: Ollyo Sp Page Builder.

## How do I fix CVE-2026-48908?

No fix has been published for CVE-2026-48908 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 10 Jul 2026.

## Is CVE-2026-48908 being exploited?

Yes. Attackers have exploited CVE-2026-48908 in the wild since at least 7 Jul 2026.

Public exploit code:

- Unauthenticated RCE PoC for CVE-2026-48908 — SP Page Builder for Joomla (≤ 6.6.1): arbitrary file upload via asset.uploadCustomIcon. Self-cleaning, token-guarded. Authorized testing only. (github_poc): https://github.com/papageo75/CVE-2026-48908-PoC
- CVE-2026-48908 — PoC exploit for unauthenticated RCE in SP Page Builder (Joomla) via arbitrary file upload. Multi‑threaded, case‑bypass, shell verification. For authorized security testing only. (github_poc): https://github.com/Jenderal92/CVE-2026-48908
- CVE-2026-48908 (github_poc): https://github.com/0xredash/CVE-2026-48908
- Technical analysis and advisory for CVE-2026-48908: Unauthenticated Arbitrary File Upload to RCE in JoomShaper SP Page Builder. (github_poc): https://github.com/imXur/CVE-2026-48908-Joomla-SP-Page-Builder-RCE
- Passive security checker for CVE-2026-48908 affecting SP Page Builder. (github_poc): https://github.com/yora1928/CVE-2026-48908-by-yora
- CVE-2026-48908 - SP Page Builder Joomla Unauthenticated RCE  (github_poc): https://github.com/gagaltotal/CVE-2026-48908-SP-Page-Builder-Joomla

## Other vulnerabilities in joomshaper.net SP Page Builder extension for Joomla

- [CVE-2026-102426](https://insights.sbomify.com/CVE-2026-102426/): Cross-site scripting in SP Page Builder (Pro) extension for Joomla (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48908 and fix it if it is affected.

What it is: CVE-2026-48908 is a critical vulnerability in joomshaper.net SP Page Builder extension for Joomla, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-48908 in the wild since at least 7 Jul 2026.

Affected product: joomshaper.net SP Page Builder extension for Joomla. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-48908/ (Markdown: https://insights.sbomify.com/CVE-2026-48908/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48908
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48908
- OSV: https://osv.dev/vulnerability/CVE-2026-48908

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48908/
Summaries are generated and may contain mistakes; the official description above is the record.