PT-2021-22056 · WordPress · Rsvpmaker Excel Wordpress Plugin

P7E4 · Published 2021-09-10 · Updated 2021-09-15 · CVE-2021-38337

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: RSVPMaker Excel WordPress plugin versions up to and including 1.1

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

Recommendations: For versions up to and including 1.1, update to a version that fixes this issue. As a temporary workaround, consider restricting access to the ~/phpexcel/PHPExcel/Shared/JAMA/docs/download.php file to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-38337

Affected Products

Rsvpmaker Excel Wordpress Plugin

References · 5

• 🔥 https://plugins.trac.wordpress.org/browser/rsvpmaker-excel/tags/1.2/phpexcel/PHPExcel/Shared/JAMA/docs/download.php#L61 · Exploit
• https://osv.dev/vulnerability/CVE-2021-38337 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38337 · Security Note
• https://t.me/cibsecurity/28675 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-38337 · Note