CVE-2026-27539 HIGH

CVE-2026-27539: WordPress Welcart e-Commerce plugin <= 2.11.31 - Cross Site Scripting (XSS) vulnerability

Vendor Welcart

Product Welcart e-Commerce

Weakness CWE-79 · XSS

Published August 13, 2026

Last update August 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

Unauthenticated Cross Site Scripting (XSS) in Welcart e-Commerce <= 2.11.31 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Welcart e-Commerce versions up to 2.11.31 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 site user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability affects the application across network boundaries.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in visitors' browsers to steal sessions, credentials, or deface content.

Potential impact on your site

04Site Impact

Visitors' accounts and data are at risk if they interact with attacker-controlled content; site reputation and trust may be damaged.

Conditions required to exploit

05Prerequisites

Attacker needs to trick a site user into clicking a malicious link or visiting a compromised page (user interaction required).

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-2026-27539 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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