CVE-2021-24404Public exploitNetwork attack vector

Unauthenticated database inference via unsanitized postID query

Published Sep 20, 2021 · Updated Aug 3, 2024

SQL injection in WP-Board 1.1 beta and earlier allows remote attackers to infer database data through crafted postID values. The options.php code inserts postID into an SQL statement without validation or escaping, and the same vulnerable parameter is evaluated twice. The unauthenticated endpoint exposes a timing oracle that confirms injected conditions; broader database effects are not demonstrated.

CVSS severity8.8
High
EPSS probability4.71%
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 WP-Board 1.1 beta and earlier allows remote attackers to infer database data through crafted postID values. The options.php code inserts postID into an SQL statement without validation or escaping, and the same vulnerable parameter is evaluated twice. The unauthenticated endpoint exposes a timing oracle that confirms injected conditions; broader database effects are not demonstrated.

The record

CVE
CVE-2021-24404
Published
Sep 20, 2021
Updated
Aug 3, 2024
Vendor
WP-Board Project
Product
WP-Board
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

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

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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=1.1 beta <=1.1 beta

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP-Board Project · WP-Boardversion=1.1 beta <=1.1 beta

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS: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
Privilegesunauthenticated
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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