CVE-2026-13015

WP Google Review Slider <= 18.1 - Reflected Cross-Site Scripting via 'place' Parameter

2026-06-30 15:04
Wordfence PRISM

Strategic Overview

Status
Patched in 18.2
Affected Plugin
WP Google Review Slider
Affected Version
<= 18.1
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2026-13015
View all WP Google Review Slider vulnerabilities

At a glance

CVE-2026-13015 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WP Google Review Slider WordPress plugin, affecting versions <= 18.1. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 18.2; sites on affected versions should update now. Disclosed June 2026, reported by Wordfence PRISM.

Vulnerability Overview

The Wp Google Places Review Slider plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'place' parameter in versions up to, and including, 18.1. This is due to insufficient input sanitization and output escaping in admin/partials/googlecrawl_dfs.php, where the $_GET['place'] value is URL-decoded, stripslashes()'d, and echoed directly into an HTML value attribute with no esc_attr() call when the supplied place is not already a stored key in the wprev_google_crawls option. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a specially crafted link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

WP Google Review Slider <= 18.1 carries this weakness at place, and reaching it takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For WP Google Review Slider the fix is 18.2: builds <= 18.1 are affected, anything from 18.2 onward is not.

Remediation

Update to version 18.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Google Review Slider: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Google Review Slider 18.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-13015https://www.wordfence.com/threat-intel/vulnerabilities/id/815054e2-c575-439a-9a66-fce251b4da80https://nvd.nist.gov/vuln/detail/CVE-2026-13015

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C