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PatchSiren cyber security CVE debrief

CVE-2017-20262 Webkul CVE debrief

CVE-2017-20262 is a high-severity SQL injection vulnerability in Joomla! Component Ajax Quiz 1.8. Unaffected product versions and vendors are unknown. The CVE was published on June 19, 2026. Attackers can inject malicious SQL code through the cid parameter in GET requests to index.php with option=com_ajaxquiz and view=ajaxquiz parameters. This allows extraction of sensitive database information, including table names and column structures. Defenders should prioritize patching due to the high CVSS score of 8.8.

Vendor
Webkul
Product
Ajax Quiz
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-19
Original CVE updated
2026-08-19
Advisory published
2026-06-19
Advisory updated
2026-08-19

Who should care

Administrators and security teams of Joomla! installations using the Ajax Quiz component version 1.8 should prioritize patching this vulnerability. The high CVSS score of 8.8 indicates a significant risk, as unauthenticated attackers can exploit this vulnerability to extract sensitive database information.

Technical summary

CVE-2017-20262 is an SQL injection vulnerability in Joomla! Component Ajax Quiz 1.8. The vulnerability allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the cid parameter in GET requests to index.php with option=com_ajaxquiz and view=ajaxquiz parameters. This enables the extraction of sensitive database information, including table names and column structures. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

High priority due to CVSS score of 8.8 and potential for sensitive data extraction

Recommended defensive actions

  • Apply official patches or updates for Joomla! Component Ajax Quiz 1.8
  • Review and limit incoming GET requests to index.php with option=com_ajaxquiz and view=ajaxquiz parameters
  • Monitor for suspicious database queries and unusual activity
  • Inventory Joomla! installations and Ajax Quiz component versions
  • Review and adjust web application firewall (WAF) rules to detect and prevent SQL injection attempts

Evidence notes

The CVE-2017-20262 record was published on June 19, 2026. The vulnerability affects Joomla! Component Ajax Quiz version 1.8. Primary evidence includes the CVE record and references to the vulnerability in various sources. Defenders should verify the affected product version and scope from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-20262 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-20262

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

  • CVE-2017-20262 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-20262

    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.