CVE-2026-78273 MEDIUM

CVE-2026-78273: WordPress Fluent Boards Pro plugin <= 2.0.11 - Cross Site Scripting (XSS) vulnerability

Vendor Wp Manage Ninja

Product Fluent Boards Pro

Weakness CWE-79 · XSS

Published August 27, 2026

Last update August 27, 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

Subscriber Cross Site Scripting (XSS) in Fluent Boards Pro <= 2.0.11 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Fluent Boards Pro versions up to 2.0.11 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with low-level access can craft a request that, when visited by another user, executes arbitrary JavaScript in their browser. The vulnerability affects the site's integrity and can lead to session hijacking or credential theft.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in other users' browsers to steal session tokens or credentials.

Potential impact on your site

04Site Impact

Authenticated users' sessions and data can be compromised if they interact with attacker-controlled content.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account on the site; victim must visit a malicious link or page.

Key dates

06Disclosure timeline

August 27, 2026 CVE published

August 27, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-78273 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities

Identifiers

CVE CVE-2026-78273

CWE CWE-79

CVSS 6.5 / MEDIUM

Affected versions