CVE-2021-43481Public exploitNetwork attack vector

Authenticated database disclosure via incomplete SQL blacklist

Published Apr 20, 2022 · Updated Aug 4, 2024

SQL injection in Webtareas 2.4p3 and earlier allows remote authenticated users to read database data through an approval query form. In the demonstrated endpoint, approvals/editapprovaltemplate.php strips several write-oriented SQL keywords from uq but permits SELECT, IF, SLEEP, and SUBSTRING to reach the database. A valid session and per-request CSRF token are required; the time-based oracle exposes stored hashes and session tokens, while the CVE record instead names editapprovalstage.php.

CVSS severity9.8
Critical
EPSS probability5.61%
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 Webtareas 2.4p3 and earlier allows remote authenticated users to read database data through an approval query form. In the demonstrated endpoint, approvals/editapprovaltemplate.php strips several write-oriented SQL keywords from uq but permits SELECT, IF, SLEEP, and SUBSTRING to reach the database. A valid session and per-request CSRF token are required; the time-based oracle exposes stored hashes and session tokens, while the CVE record instead names editapprovalstage.php.

The record

CVE
CVE-2021-43481
Published
Apr 20, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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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