PT-2021-22535 · WordPress · Simple Job Board

Published 2021-10-21 · Updated 2021-10-28 · CVE-2021-39328

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: The Simple Job Board WordPress plugin versions up to and including 2.9.4

Description: The issue is related to Stored Cross-Site Scripting due to insufficient escaping on the job board privacy policy label variable. This variable is echo'd out via the ~/admin/settings/class-simple-job-board-settings-privacy.php file, allowing attackers with administrative user access to inject arbitrary web scripts. The issue affects multi-site installations where unfiltered html is disabled for administrators, and sites where unfiltered html is disabled.

Recommendations: For versions up to and including 2.9.4, update to a version later than 2.9.4 to resolve the issue. As a temporary workaround, consider restricting administrative user access to minimize the risk of exploitation. Additionally, enabling unfiltered html for administrators may help mitigate the issue, but this should be done with caution and careful consideration of the potential risks.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-39328

Affected Products

Simple Job Board

References · 7

• 🔥 https://github.com/BigTiger2020/word-press/blob/main/Simple%20Job%20Board%E2%80%94Stored%20Cross-Site%20Scripting%20-%202.md · Exploit
• https://osv.dev/vulnerability/CVE-2021-39328 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/2617364/simple-job-board/trunk/admin/settings/class-simple-job-board-settings-privacy.php · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-39328 · Security Note
• https://t.me/cibsecurity/30990 · Telegram Post
• https://t.me/cvenotify/22532 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-39328 · Note