CVE-2012-5872Public exploitNetwork attack vector

Blind SQL injection via unescaped debug comments

Published Apr 25, 2023 · Updated Feb 3, 2025

Blind SQL injection in ARC2 2011-12-01 and earlier allows remote attackers to manipulate MySQL queries through a crafted SPARQL WHERE clause. getTriplePatternSQL in ARC2_StoreSelectQueryHandler.php inserts subject, predicate, and object values into always-enabled SQL debug comments without neutralizing comment terminators. A reachable SPARQL+ endpoint accepting attacker-controlled queries is required; the demonstrated time-delay and Boolean payloads provide a blind database oracle.

CVSS severity9.8
Critical
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in ARC2 2011-12-01 and earlier allows remote attackers to manipulate MySQL queries through a crafted SPARQL WHERE clause. getTriplePatternSQL in ARC2_StoreSelectQueryHandler.php inserts subject, predicate, and object values into always-enabled SQL debug comments without neutralizing comment terminators. A reachable SPARQL+ endpoint accepting attacker-controlled queries is required; the demonstrated time-delay and Boolean payloads provide a blind database oracle.

The record

CVE
CVE-2012-5872
Published
Apr 25, 2023
Updated
Feb 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2025Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8MITRECVSS:3.1/AV:N/AC:L/PR:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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