CVE-2012-4383Network attack vector

Authenticated SQL injection via backend Ajax.php

Published Jan 29, 2020 · Updated Aug 6, 2024

SQL injection in Contao before 2.11.4 allows remote authenticated users to execute unintended database queries through the backend. The backend Ajax.php component incorporates attacker-controlled request data into SQL without adequate neutralization, allowing manipulation of query behavior. Exploitation requires a valid backend account and network access; the resulting impact includes reading or changing database data and disrupting service.

CVSS severity8.8
High
EPSS probability0.92%
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 Contao before 2.11.4 allows remote authenticated users to execute unintended database queries through the backend. The backend Ajax.php component incorporates attacker-controlled request data into SQL without adequate neutralization, allowing manipulation of query behavior. Exploitation requires a valid backend account and network access; the resulting impact includes reading or changing database data and disrupting service.

The record

CVE
CVE-2012-4383
Published
Jan 29, 2020
Updated
Aug 6, 2024
Vendor
Contao
Product
Contao
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=prior to 2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Contao · Contaoversion=prior to 2.11

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NVDAV:N/AC:L/Au:S/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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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