6.5Medium

CVE-2026-28083WordPress Flatsome theme <= 3.20.5 - Cross Site Scripting (XSS) vulnerability

UX-themes Flatsome Published: 2026-02-26 11:33 (8 months ago)

Description

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

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
UX-themes	Flatsome	≤ 3.20.5

References and patches

https://patchstack.com/database/Wordpress/Theme/flatsome/vulnerability/wordpress-flatsome-theme-3-20-1-cross-… vdb-entry

CVSS score

6.5Medium

Source: Patchstack · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: Low

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

All scores (2)

cna	CVSS 3.1	6.5Medium
audit@patchstack.com	CVSS 3.1	6.5Medium

EPSS (chance of exploitation in 30 days)

0.15%

higher than 5% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: partial

Timeline

ID reserved2026-02-25
Published2026-02-26 11:33
Reached IP-DB2026-10-24 23:48
Last updated2026-06-17 13:28

Assigned by (CNA): Patchstack
NVD status: Deferred

View at source: CVE.org · NVD

Get told when these products get a new vulnerability

Turn on email alerts

Free · with an account · switch off any time

Recent CVEs in the same product — WordPress plugins & themes

6.4Medium

CVE-2026-18742 2 hours ago

Flatsome <= 3.20.12 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block

UX-themes Flatsome

The Flatsome theme for WordPress is vulnerable to Stored Cross-Site Scripting via 'data-text-sec', 'data-title', and 'title' Attributes via Custom HTML Block in all versions up to, and including, 3.20.12 due to insufficient input sanitization and output escap…

Unscored

CVE-2026-126639 4 hours ago

WP Ultimate CSV Importer (Free & Pro) - Unauthenticated Post Data Disclosure via Predictable Single Export Path

WP Ultimate CSV Importer; WP Ultimate CSV Importer Pro

The WP Ultimate CSV Importer WordPress plugin before 9.2, WP Ultimate CSV Importer Pro WordPress plugin before 9.0.7 do not protect the files created by their single post export feature, writing them to a publicly accessible location under a predictable name…

Unscored

CVE-2026-126640 4 hours ago

WP Ultimate CSV Importer < 9.3 - Admin+ SQLi via LifterLMS Import

WP Ultimate CSV Importer

The WP Ultimate CSV Importer WordPress plugin before 9.3 does not escape values from imported files before using them in SQL queries when importing LifterLMS content, allowing high privilege users such as admin, including the administrator of a single site o…

Unscored

CVE-2026-126697 4 hours ago

Quick Page/Post Redirect 5.2.1 - 5.2.3 - Backdoor via Off-Repository Update Channel

Quick Page/Post Redirect Plugin

The Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 was distributed with a hidden update mechanism that fetched Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 updates from its author's own server instead of WordPress.org, which wa…

Unscored

CVE-2026-118182 4 hours ago

Copy & Delete Posts < 1.5.8 - Authenticated Arbitrary Post Slug Takeover

Duplicate Post

The Duplicate Post WordPress plugin before 1.5.8 does not check that a user duplicating a post is allowed to edit it, which, when the slug takeover option is enabled, allows users of a role an administrator has given Duplicate Post WordPress plugin before 1.5…

Unscored

CVE-2026-118183 4 hours ago

Copy & Delete Posts < 1.5.8 - Authenticated Post Publishing Restriction Bypass

Duplicate Post

The Duplicate Post WordPress plugin before 1.5.8 does not check whether a user may publish posts when duplicating one, allowing users of a role an administrator has given Duplicate Post WordPress plugin before 1.5.8 access to, such as Contributors, to create …