CVE-2026-57428 HIGH

CVE-2026-57428: WordPress Sprout Clients plugin <= 3.2.3 - Cross Site Scripting (XSS) vulnerability

Vendor Boldgrid

Product Sprout Clients

Weakness CWE-79 · XSS

Published July 23, 2026

Last update July 23, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Cross Site Scripting (XSS) in Sprout Clients <= 3.2.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Sprout Clients versions 3.2.3 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. An attacker can craft a malicious link or page that, when visited by a user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser to steal session data or perform unauthorized actions.

Potential impact on your site

04Site Impact

Users visiting crafted malicious links could have their sessions compromised or be tricked into performing unwanted actions on the site.

Conditions required to exploit

05Prerequisites

Attacker must trick a user into visiting a malicious link or page (user interaction required). No authentication needed.

Key dates

06Disclosure timeline

July 23, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-57428 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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