CVE-2026-57728 HIGH

CVE-2026-57728: WordPress Flatsome theme <= 3.20.5 - Reflected Cross Site Scripting (XSS) vulnerability

Vendor Ux-Themes

Product Flatsome

Weakness CWE-79 · XSS

Published July 13, 2026

Last update July 13, 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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UX-themes Flatsome flatsome allows Reflected XSS.This issue affects Flatsome: from n/a through <= 3.20.5.

Explanation of Vulnerability in Simple Terms

02Summary

Flatsome versions up to 3.20.5 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. The vulnerability requires user interaction—typically clicking a malicious link—and can affect multiple users if the injected content is stored. Site visitors may have their sessions hijacked, credentials stolen, or be redirected to phishing pages.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers and steals session cookies or credentials.

Potential impact on your site

04Site Impact

Visitors' accounts and data at risk; site reputation damaged if used for phishing or malware distribution.

Conditions required to exploit

05Prerequisites

Attacker must craft a malicious link or stored payload; victim must click the link or visit an affected page.

Key dates

06Disclosure timeline

July 13, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-57728 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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