CVE-2026-73340 MEDIUM

CVE-2026-73340: WordPress Featured Image from URL plugin <= 5.3.3 - Cross Site Scripting (XSS) vulnerability

Vendor Fifu.app

Product Featured Image from URL

Weakness CWE-79 · XSS

Published August 13, 2026

Last update August 13, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Contributor Cross Site Scripting (XSS) in Featured Image from URL <= 5.3.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Featured Image from URL versions up to 5.3.3 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts through image URL fields. When other users view affected pages, the injected code executes in their browsers, potentially compromising their sessions or stealing data. The vulnerability requires user interaction to trigger.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they view affected pages.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other site visitors; session hijacking or data theft possible depending on user roles.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account and trick a user into viewing a page with the injected payload.

Key dates

06Disclosure timeline

August 13, 2026 CVE published

August 13, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-73340 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities