CVE-2021-24396Public exploitNetwork attack vector

Authenticated SQL injection via concatenated pageid

Published Sep 20, 2021 · Updated Aug 3, 2024

SQL injection in Bestiaweb GSEOR – WordPress SEO Plugin 1.3 and earlier allows remote authenticated users to execute arbitrary SQL via pageid. In gseor.php, line 457 concatenates the pageid GET value directly into a SELECT statement passed to $wpdb->get_results without sanitization, escaping, validation, or parameter binding. Administrator access to the WordPress dashboard is required; injected boolean and SLEEP expressions can alter query logic and delay database responses.

CVSS severity7.2
High
EPSS probability1.52%
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

SQL injection in Bestiaweb GSEOR – WordPress SEO Plugin 1.3 and earlier allows remote authenticated users to execute arbitrary SQL via pageid. In gseor.php, line 457 concatenates the pageid GET value directly into a SELECT statement passed to $wpdb->get_results without sanitization, escaping, validation, or parameter binding. Administrator access to the WordPress dashboard is required; injected boolean and SLEEP expressions can alter query logic and delay database responses.

The record

CVE
CVE-2021-24396
Published
Sep 20, 2021
Updated
Aug 3, 2024
Vendor
Bestiaweb
Product
GSEOR – WordPress SEO Plugin
Classifications
CWE-89, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 20, 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=1.3 <=1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Bestiaweb · GSEOR – WordPress SEO Pluginversion=1.3 <=1.3

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
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

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