PT-2021-22533 · WordPress · Optinmonster

Mariia Aleksandrova · Published 2021-09-20 · Updated 2021-09-29 · CVE-2021-39325

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: OptinMonster WordPress plugin versions up to and including 2.6.0

Description: The issue is related to Reflected Cross-Site Scripting due to insufficient input validation in the load previews function found in the ~/OMAPI/Output.php file. This allows attackers to inject arbitrary web scripts.

Recommendations: For versions up to and including 2.6.0, update to a version higher than 2.6.0 to resolve the issue. As a temporary workaround, consider restricting access to the load previews function in the ~/OMAPI/Output.php file until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-39325

Affected Products

Optinmonster

References · 5

• https://osv.dev/vulnerability/CVE-2021-39325 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39325 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2595758%40optinmonster&new=2595758%40optinmonster&sfp_email=&sfph_mail=#file2 · Patch
• https://t.me/cibsecurity/29167 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-39325 · Note