CVE-2021-36869 MEDIUM

CVE-2021-36869: WordPress Ivory Search plugin <= 4.6.6 - Reflected Cross-Site Scripting (XSS) vulnerability

Vendor Ivory Search

Product Ivory Search (WordPress plugin)

Weakness CWE-79 · XSS

Published October 21, 2021

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

4.8/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

Reflected Cross-Site Scripting (XSS) vulnerability in WordPress Ivory Search plugin (versions <= 4.6.6). Vulnerable parameter: &post.

Explanation of Vulnerability in Simple Terms

02Summary

The Ivory Search WordPress plugin through version 4.6.6 contains a stored cross-site scripting (XSS) vulnerability. An authenticated admin can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires admin privileges and user interaction to exploit, but can affect site visitors across the platform.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they visit the site.

Potential impact on your site

04Site Impact

A compromised admin account can inject scripts affecting all site visitors, potentially stealing credentials or redirecting users.

Conditions required to exploit

05Prerequisites

Admin-level access to the WordPress site; victim must view a page containing the injected script.

Key dates

06Disclosure timeline

October 21, 2021 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-36869 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities

Identifiers

CVE CVE-2021-36869

CWE CWE-79

CVSS 4.8 / MEDIUM

Affected versions