PT-2021-22051 · WordPress · On Page Seo + Whatsapp Chat Button Plugin

P7E4 · Published 2021-09-10 · Updated 2021-09-15 · CVE-2021-38332

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: On Page SEO + Whatsapp Chat Button Plugin WordPress plugin versions up to and including 1.0.1

Description: The issue is related to Reflected Cross-Site Scripting, which occurs due to a reflected $ SERVER["PHP SELF"] value in the ~/settings.php file. This allows attackers to inject arbitrary web scripts.

Recommendations: For versions up to and including 1.0.1, update to a version higher than 1.0.1 to resolve the issue. As a temporary workaround, consider restricting access to the ~/settings.php file to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-38332

Affected Products

On Page Seo + Whatsapp Chat Button Plugin

References · 5

• 🔥 https://plugins.trac.wordpress.org/browser/ops-robots-txt/tags/1.0.0/settings.php#L175 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-38332 · Security Note
• https://osv.dev/vulnerability/CVE-2021-38332 · Vendor Advisory
• https://t.me/cibsecurity/28670 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-38332 · Note