CVE-2021-24296Network attack vector

Stored script execution via unsanitized settings

Published May 24, 2021 · Updated Aug 3, 2024

Stored cross-site scripting in WP Customer Reviews before 3.5.6 allows remote authenticated users to execute script through plugin settings. The plugin stores selected settings without sanitizing their values and later inserts attacker-supplied payloads into pages where reviews are enabled. Administrator-level access is required to save the payload, and another user must load a review-enabled page for the script to run in that user's browser.

CVSS severityUnavailable
Unscored
EPSS probability0.62%
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 cross-site scripting in WP Customer Reviews before 3.5.6 allows remote authenticated users to execute script through plugin settings. The plugin stores selected settings without sanitizing their values and later inserts attacker-supplied payloads into pages where reviews are enabled. Administrator-level access is required to save the payload, and another user must load a review-enabled page for the script to run in that user's browser.

The record

CVE
CVE-2021-24296
Published
May 24, 2021
Updated
Aug 3, 2024
Vendor
GoWeb Solutions
Product
WP Customer Reviews
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=3.5.6 <3.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

GoWeb Solutions · WP Customer Reviewsversion=3.5.6 <3.5.6

Published CVSS scores

No CVSS assessment is available in this record.

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-site Scripting (XSS)
T1059.007JavaScript

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