CVE-2026-0563: Medium Vulnerability in WP Google Street View Plugin

The WP Google Street View (with 360° virtual tour) & Google Maps + Local SEO plugin for WordPress is vulnerable to stored cross-site scripting (XSS) via the 'wpgsv_map' shortcode in all versions up to, and including, 1.1.8. This vulnerability arises due to insufficient input sanitization and output escaping. Authenticated attackers, with contributor level access and above, can inject arbitrary web scripts into pages, which execute whenever a user accesses the affected page.

With a CVSS score of 6.4, this vulnerability is classified as medium severity. The risk to organizations includes potential unauthorized access to sensitive user data and the ability to perform actions on behalf of users without their consent. Given the nature of the vulnerability, it is imperative for affected organizations to take immediate action.

As of now, there are no known exploits in the wild, and the vulnerability is not categorized as actively exploited in the Known Exploited Vulnerabilities (KEV) catalog. However, the potential impact of exploitation necessitates that organizations address this vulnerability in their patch cycle.

Organizations should prioritize patching immediately. Failure to do so could expose their WordPress sites to malicious attacks that leverage this vulnerability.

Vulnerability Details

The WP Google Street View plugin allows users to embed Google Maps and Street View content into their WordPress sites. The vulnerability exists due to insufficient input validation for the 'wpgsv_map' shortcode. An attacker with appropriate access rights can inject scripts that execute in the context of the user's browser, leading to potential data theft or session hijacking.

The vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')). The CVSS vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N, indicating a network attack vector with low complexity and requiring low privileges.

The plugin's last published update was on January 9, 2026, and the vulnerability was last modified on April 15, 2026. Organizations using this plugin should check for updates and apply any patches provided by the vendor.

Technical Analysis

The root cause of this vulnerability stems from inadequate input sanitization in the shortcode processing. When the 'wpgsv_map' shortcode is utilized, untrusted data can be directly injected into the rendered HTML without proper encoding, allowing attackers to execute arbitrary scripts.

The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely. The complexity of the attack is low, as it only requires the attacker to have contributor-level access to the WordPress site. No user interaction is necessary for the attack to succeed, increasing its potential impact.

The potential impact on confidentiality and integrity is assessed as low, while availability is not impacted. Organizations should monitor for signs of exploitation and reinforce their security posture around web application input validation.

Risk & Impact Analysis

The real-world risk associated with this vulnerability lies in the ability of authenticated users to inject malicious scripts into the pages viewed by other users. This could lead to unauthorized data access, including sensitive user information or administrative functionalities.

Organizations should consider the potential blast radius of this vulnerability, particularly if the plugin is widely used across their websites. The urgency to patch is underscored by the CVSS score, which indicates a medium level of risk, combined with the potential for exploitation by authenticated users.

Given that this vulnerability is not currently listed in the KEV catalog, it may not be actively exploited at this time. However, organizations should not assume that this status will remain unchanged. Continuous monitoring and timely patching are essential.

Affected Versions

All versions up to, and including, 1.1.8 of the WP Google Street View plugin are affected by this vulnerability. Organizations should check their installations to ensure they are running a patched version.

Mitigation & Remediation

To mitigate this vulnerability, organizations should update the WP Google Street View plugin to the latest version. Patching the plugin will ensure that input sanitization and output escaping are correctly implemented.

If immediate patching is not possible, consider disabling the plugin until an update can be applied. This will help prevent potential exploitation during the interim period.

Organizations may also benefit from conducting a thorough security assessment, including a review of their overall WordPress security posture. Regular security audits and implementation of security best practices can help mitigate the risk of similar vulnerabilities.

Continuous penetration testing can also help organizations identify and remediate vulnerabilities before they can be exploited.

Detection Guidance

Organizations should monitor logs for unusual activity related to the use of the 'wpgsv_map' shortcode. Look for signs of unauthorized script injections or anomalies in user behavior that may indicate exploitation attempts.

Behavioral anomalies such as unexpected page loads or user reports of strange behaviors should be investigated promptly. Network signatures associated with typical XSS attacks can also be employed to enhance monitoring capabilities.

AppSecure Threat Intelligence Insight

The long-term significance of this vulnerability is tied to the prevalent use of third-party plugins in WordPress. Security teams must remain vigilant and proactive in identifying vulnerabilities that could impact their applications.

This incident represents a broader trend of vulnerabilities arising from insufficient input validation and sanitization. Establishing robust security practices and integrating security into the development lifecycle can mitigate such risks.

Security teams should prioritize training and awareness around secure coding practices, as well as regularly assess their application security posture. For further reading on best practices, refer to our security checklist for web developers and our guide on penetration testing methodology to strengthen defenses against similar vulnerabilities.