High severity · published Jun 19, 2026
CVE-2017-20262
Joomla! Component Ajax Quiz 1.8 SQL Injection
8.2
CVSS
0.5%
EPSS
No
On KEV
Description
Joomla! Component Ajax Quiz 1.8 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the cid parameter. Attackers can send GET requests to index.php with the option=com_ajaxquiz and view=ajaxquiz parameters to extract sensitive database information including table names and column structures.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AQ
Ajax Quiz · Webkul
1.8 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-20262
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-20262
Product
http://webkul.com/
Product
https://extensions.joomla.org/extensions/extension/living/education-a-culture/ajaxquiz/
Exploit
https://www.exploit-db.com/exploits/42532
Third Party Advisory
https://www.vulncheck.com/advisories/joomla-component-ajax-quiz-sql-injection