CVE-2026-11591Network attack vector

Stored XSS via unescaped fomo parameters

Published Jul 11, 2026 · Updated Jul 11, 2026

Stored XSS in Trustindex Widgets for Google Reviews 13.3 and earlier allows remote authenticated users to inject scripts via admin settings. The fomo-title and fomo-text parameters are saved by the widget configurator and later rendered without sufficient sanitization or output escaping. Editor-level access is required, and execution occurs only on multisite installations or where unfiltered_html is disabled when a user opens an injected page.

CVSS severity4.4
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in Trustindex Widgets for Google Reviews 13.3 and earlier allows remote authenticated users to inject scripts via admin settings. The fomo-title and fomo-text parameters are saved by the widget configurator and later rendered without sufficient sanitization or output escaping. Editor-level access is required, and execution occurs only on multisite installations or where unfiltered_html is disabled when a user opens an injected page.

The record

CVE
CVE-2026-11591
Published
Jul 11, 2026
Updated
Jul 11, 2026
Vendor
Trustindex.io
Product
Widgets for Google Reviews
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=13.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Trustindex.io · Widgets for Google Reviewsversion=0 <=13.3

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo