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CVE-2026-77994 – SQL Injection – JoomlaCK.fr Page Builder CK for Joomla (≤ 3.6.4)

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Summary

CVE-2026-77994 is a second-order SQL injection vulnerability in the JoomlaCK.fr Page Builder CK extension for Joomla, located in the loadStyles method of the extension’s frontend page model. The flaw allows an attacker to execute arbitrary database queries and carries a CRITICAL CVSS score of 9.3. It affects Page Builder CK versions 1.0.0 through 3.6.4.

Technical details

  • Root cause: the loadStyles method of the frontend page model fails to properly neutralize special elements before using input in a SQL command (CWE-89), and the injection is second-order — the malicious input is stored and later used unsafely in a database query rather than being executed immediately.
  • Trigger conditions: no privileges and no user interaction are required to reach the vulnerable code path.
  • Attack vector: network-based, exploitable over HTTP against any internet-exposed Joomla site running the affected extension.
  • Impact: successful exploitation can allow an attacker to execute arbitrary database queries, with high impact to confidentiality, integrity, and availability of the underlying database.

Affected software

  • JoomlaCK.fr Page Builder CK extension for Joomla, versions 1.0.0 through 3.6.4 (fixed in 3.6.5)

Severity

CVSS v4.0 Base Score: 9.3 (Critical)
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Mitigation and recommended actions

  • Immediate: upgrade Page Builder CK to version 3.6.5 or later, which addresses this SQL injection issue.
  • If immediate patching is not possible: restrict or monitor access to the extension’s frontend page-rendering functionality, and review database logs for anomalous queries originating from the extension until the update can be applied.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw response body: /components/com_pagebuilderck/, /media/com_pagebuilderck/, /modules/mod_pagebuilderck/

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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