CVE-2026-81565: JoomShaper SP Page Builder arbitrary file upload directory traversal

CVE-2026-81565 · Severity: info · CVSS 7.5 · Published 2026-09-14

SP Page Builder is a drag-and-drop page composer extension for Joomla used by hundreds of thousands of websites. An attacker could bypass directory restrictions during file uploads and place files into sensitive directories like administrator folders or the site root, potentially enabling remote code execution or unauthorized access to administrative functions.

Technologies: JoomShaper SP Page Builder, JoomShaper SP Page Builder Pro. Vendors: JoomShaper.

Quick answers

Is CVE-2026-81565 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-81565 being exploited in the wild.
How severe is CVE-2026-81565?
Informational severity, with a CVSS score of 7.5, published 14 September 2026.
Which products and versions are affected?
JoomShaper SP Page Builder 4.0.0–6.9.0; JoomShaper SP Page Builder Pro 4.0.0–6.9.0.
Is there a fix for CVE-2026-81565?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-81565 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-81565?
Check whether you run JoomShaper SP Page Builder or JoomShaper SP Page Builder Pro at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A missing directory confinement vulnerability exists in the media upload functionality of SP Page Builder (Free and Pro versions 4.0.0–6.9.0). The vulnerability stems from insufficient input validation on the "folder" request parameter, which replaces the generated date-based destination folder path and is passed to Folder::create() and File::upload() functions without boundary checks. This allows attackers to write files into any directory beneath the web root, including administrator/, templates/, cli/, and the site root. While Joomla's PATH input filter prevents traversal above the web root and existing files are not overwritten, the ability to write into sensitive directories presents a significant security risk. No authentication requirement is explicitly stated, suggesting the upload endpoint may be accessible to unauthenticated users or low-privileged users.

Affected products

  • JoomShaper SP Page Builder 4.0.0–6.9.0
  • JoomShaper SP Page Builder Pro 4.0.0–6.9.0

Timeline

  • 2026-09-14: disclosed: CVE-2026-81565 published on NVD

References

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