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PatchSiren cyber security CVE debrief

CVE-2017-20269 Joomla! CVE debrief

CVE-2017-20269 is a high-severity SQL injection vulnerability in Joomla! Component KissGallery 1.0.0. Unaffected attackers can inject malicious SQL commands via the kissgallery endpoint, allowing for arbitrary database queries and sensitive information extraction. Defenders should prioritize patching or mitigating this vulnerability to limit exposure. The CVE was published on 2026-06-19T17:16:14.940Z.

Vendor
Joomla!
Product
KissGallery
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-19
Original CVE updated
2026-08-21
Advisory published
2026-06-19
Advisory updated
2026-08-21

Who should care

Administrators and security teams responsible for Joomla! installations, particularly those using the KissGallery component, should be aware of this vulnerability. Given the high CVSS score of 8.8, this issue demands immediate attention to prevent potential data breaches.

Technical summary

The KissGallery component for Joomla! version 1.0.0 is vulnerable to SQL injection. Attackers can inject malicious SQL code through the component's URL path, specifically via the kissgallery endpoint. This allows for the execution of arbitrary database queries, potentially leading to sensitive information disclosure. The vulnerability is classified under CWE-89 and has a CVSS score of 8.8, indicating high severity.

Defensive priority

High priority due to high CVSS score and potential for sensitive information disclosure.

Recommended defensive actions

  • Apply the official patch or update KissGallery to a patched version if available.
  • Implement input validation and sanitization for user-supplied input in the kissgallery endpoint.
  • Use a Web Application Firewall (WAF) to detect and prevent SQL injection attacks.
  • Monitor for suspicious activity and implement logging and auditing to detect potential exploitation attempts.
  • Consider temporarily disabling the KissGallery component if a patch cannot be applied immediately.

Evidence notes

The primary evidence for this vulnerability comes from the NVD and CVE.org records. The vulnerability affects Joomla! Component KissGallery version 1.0.0. Defenders should verify the version of KissGallery in use and check for any available patches or updates. The CVSS score of 8.8 indicates high severity, suggesting that exploitation could lead to significant impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-20269 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-20269

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-20269 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-20269

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.