CVE-2021-39334

Public Exploit
Job Board Vanila Plugin <= 1.0 Authenticated Stored Cross-Site Scripting

Description

The Job Board Vanila WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via the psjb_exp_in and the psjb_curr_in parameters found in the ~/job-settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.0. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Remediation

Solution:

  • Uninstall plugin from WordPress site.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.45%
Third-Party Advisory github.com Third-Party Advisory wordpress.org Third-Party Advisory wordfence.com
Affected: Job Board Vanila Plugin Job Board Vanila Plugin
Published at:
Updated at:

References

Link Tags
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39334 third party advisory
https://github.com/BigTiger2020/word-press/blob/main/Job%20Board%20Vanila%20Plugin-2.md third party advisory exploit
https://plugins.trac.wordpress.org/browser/job-board-vanilla/trunk/job-settings.php third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-39334?
CVE-2021-39334 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39334?
To fix CVE-2021-39334: Uninstall plugin from WordPress site.
Is CVE-2021-39334 being actively exploited in the wild?
It is possible that CVE-2021-39334 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39334?
CVE-2021-39334 affects Job Board Vanila Plugin Job Board Vanila Plugin.
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