CVE-2023-30786 MEDIUM

CVE-2023-30786: WordPress Captcha Them All Plugin <= 1.3.3 is vulnerable to Cross Site Scripting (XSS)

Vendor Benjamin Guy

Product Captcha Them All

Weakness CWE-79 · XSS

Published August 16, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.9/10

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:L

What the vulnerability does

01Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Benjamin Guy Captcha Them All plugin <= 1.3.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Captcha Them All versions up to 1.3.3 contain a cross-site scripting (XSS) vulnerability that allows an authenticated administrator to inject malicious scripts. The vulnerability requires user interaction and affects the integrity and confidentiality of the site. An attacker with high-level privileges can craft a malicious request that, when visited by a victim, executes arbitrary JavaScript in their browser.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in a victim's browser and steals session data or modifies site content.

Potential impact on your site

04Site Impact

An admin account holder could be tricked into visiting a malicious link that compromises their session or modifies site settings.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access and the victim must visit a crafted link or page.

Key dates

06Disclosure timeline

August 16, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-30786 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities