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CVE-2026-65766 – Unauthenticated SQL Injection – SP Page Builder for Joomla < 6.7.1

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Summary

CVE-2026-65766 is a critical unauthenticated SQL injection vulnerability in SP Page Builder, a widely deployed page-building extension for Joomla developed by JoomShaper. The flaw exists in the Dynamic Content endpoint, where the direction order parameter is concatenated directly into a SQL ORDER BY clause without validation, enabling any unauthenticated remote attacker to extract the full contents of the Joomla database. This vulnerability was published on July 27, 2026 and carries a CVSS 4.0 score of 9.2 (Critical).

Technical details

  • Root cause: The direction parameter accepted by the Dynamic Content endpoint (in dynamic_content.php and CollectionData.php) is inserted raw into the ORDER BY clause of a database query without sanitization or allowlist validation. As ORDER BY direction values cannot be safely parameterized in SQL, the only safe mitigation is strict value restriction to ASC or DESC — which was absent in all versions prior to 6.7.1.
  • Authentication bypass: Although the endpoint requires a Joomla CSRF token, Joomla issues valid tokens to every visitor including unauthenticated users, rendering this check ineffective as an access control.
  • Trigger conditions: An attacker needs only to craft an HTTP request to the Dynamic Content endpoint with a malicious direction value. No credentials, session, or user interaction are required.
  • Attack vector: Network-accessible; exploitable remotely over the internet against any exposed Joomla site running the affected extension.
  • Impact: Full database read access — including user account records, password hashes, session tokens, the Joomla site secret, and all stored content. Exploitation was demonstrated via time-based blind SQL injection.

Affected software

  • SP Page Builder extension for Joomla, versions 1.0.0 through 6.7.0 (all versions prior to 6.7.1)

Severity

  • CVSS 4.0 Base Score: 9.2 (Critical)
  • Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
  • Both direct system confidentiality (VC:H) and subsequent system confidentiality (SC:H) are rated HIGH, reflecting the ability to exfiltrate the entire Joomla database including credentials, session tokens, and all stored records held in the underlying system.

Mitigation and recommended actions

  • Immediate: Update SP Page Builder to version 6.7.1 or later. The fix restricts the direction parameter to only the values ASC or DESC before query execution, and adds permission checks that prevent anonymous access to the Dynamic Content endpoint.
  • If patching is not immediately possible: Restrict public access to Dynamic Content endpoints via web application firewall rules or server-level controls blocking unauthenticated requests to the SP Page Builder component (com_sppagebuilder).

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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