CVE-2020-20392Public exploitNetwork attack vector

Unauthenticated SQL injection via fm[auser] parameter

Published Jun 23, 2021 · Updated Aug 4, 2024

SQL injection in imcat 5.2 allows remote attackers to read or alter database data through fm[auser] in product-review requests. The product-review handler in root/plus/coms/add_coms.php permits the database to evaluate attacker-supplied SQL expressions in fm[auser], including error-based EXTRACTVALUE probes. No authentication or user interaction is required, and the public proof of concept demonstrates disclosure of database metadata.

CVSS severity9.8
Critical
EPSS probability1.45%
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 imcat 5.2 allows remote attackers to read or alter database data through fm[auser] in product-review requests. The product-review handler in root/plus/coms/add_coms.php permits the database to evaluate attacker-supplied SQL expressions in fm[auser], including error-based EXTRACTVALUE probes. No authentication or user interaction is required, and the public proof of concept demonstrates disclosure of database metadata.

The record

CVE
CVE-2020-20392
Published
Jun 23, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2021CVE 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NVDCVSS: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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