CVE-2021-24506Public exploitNetwork attack vector

Contributor-level database access via shortcode SQL injection

Published Aug 23, 2021 · Updated Aug 3, 2024

SQL injection in QuantumCloud Slider Hero before 8.2.7 allows remote authenticated users to read or modify WordPress data. The hero-button shortcode places its unsanitized id attribute directly into a SQL statement, letting crafted shortcode content alter the query. Contributor-level permission to create and preview a post is sufficient, and the published proof of concept extracts WordPress usernames and password hashes.

CVSS severity8.8
High
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in QuantumCloud Slider Hero before 8.2.7 allows remote authenticated users to read or modify WordPress data. The hero-button shortcode places its unsanitized id attribute directly into a SQL statement, letting crafted shortcode content alter the query. Contributor-level permission to create and preview a post is sufficient, and the published proof of concept extracts WordPress usernames and password hashes.

The record

CVE
CVE-2021-24506
Published
Aug 23, 2021
Updated
Aug 3, 2024
Vendor
QuantumCloud
Product
Slider Hero
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=8.2.7 <8.2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

QuantumCloud · Slider Heroversion=8.2.7 <8.2.7

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

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Your stack

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