SB2021111914 - Stored cross-site scripting in Simple Job Board plugin for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) Stored cross-site scripting (CVE-ID: CVE-2021-39328)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the $job_board_privacy_policy_label in the ~/admin/settings/class-simple-job-board-settings-privacy.php file. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39328
• https://github.com/BigTiger2020/word-press/blob/main/Simple%20Job%20Board%E2%80%94Stored%20Cross-Site%20Scripting%20-%202.md
• https://plugins.trac.wordpress.org/changeset/2617364/simple-job-board/trunk/admin/settings/class-simple-job-board-settings-privacy.php