CVE-2022-4156Public exploitNetwork attack vector

Database disclosure via unescaped user identifier

Published Dec 26, 2022 · Updated Apr 14, 2025

SQL injection in Contest Gallery and Contest Gallery Pro before 19.1.5.1 allows remote authenticated users to read database data. The ajax-functions-backend.php handler concatenates the unescaped user_id POST value directly into an SQL query, allowing injected expressions to execute against the WordPress database. An account with at least the Author role and a valid request nonce is required; the demonstrated time-based query provides an oracle for extracting sensitive database contents.

CVSS severity7.5
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 Contest Gallery and Contest Gallery Pro before 19.1.5.1 allows remote authenticated users to read database data. The ajax-functions-backend.php handler concatenates the unescaped user_id POST value directly into an SQL query, allowing injected expressions to execute against the WordPress database. An account with at least the Author role and a valid request nonce is required; the demonstrated time-based query provides an oracle for extracting sensitive database contents.

The record

CVE
CVE-2022-4156
Published
Dec 26, 2022
Updated
Apr 14, 2025
Vendor
Wasiliy Strecker / ContestGallery developer
Product
Contest Gallery Pro
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <19.1.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Wasiliy Strecker / ContestGallery developer · Contest Gallery Proversion=0 <19.1.5.1
Wasiliy Strecker / ContestGallery developer · Contest Galleryversion=0 <19.1.5.1

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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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