CVE-2019-12517

Name: CVE-2019-12517
Creator: NVD / NIST
Published: 2019-09-13T13:15:11.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2019-12517 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An XSS issue was discovered in the slickquiz plugin through 1.3.7.1 for WordPress. The save_quiz_score functionality available via the /wp-admin/admin-ajax.php endpoint allows unauthenticated users to submit quiz solutions/answers, which are stored in the database and later shown in the WordPress backend for all users with at least Subscriber rights. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

An XSS issue was discovered in the slickquiz plugin through 1.3.7.1 for WordPress. The save_quiz_score functionality available via the /wp-admin/admin-ajax.php endpoint allows unauthenticated users to submit quiz solutions/answers, which are stored in the database and later shown in the WordPress backend for all users with at least Subscriber rights. Because the plugin does not properly validate and sanitize this data, a malicious payload in either the name or email field is executed directly within the backend at /wp-admin/admin.php?page=slickquiz across all users with the privileges of at least Subscriber.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.25%

65.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Slickquiz Project	Slickquiz	<= 1.3.7.1

References

http://packetstormsecurity.com/files/154439/WordPress-SlickQuiz-1.3.7.1-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://wordpress.org/plugins/slickquiz/#developersProduct
http://packetstormsecurity.com/files/154439/WordPress-SlickQuiz-1.3.7.1-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://wordpress.org/plugins/slickquiz/#developersProduct

Timeline

Published: Sep 13, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12517?

How severe is CVE-2019-12517?

CVE-2019-12517 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12517?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12517?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST