CVE-2023-4776Public exploitNetwork attack vector

Authenticated SQL injection via unquoted ClassID parameter

Published Oct 16, 2023 · Updated Apr 23, 2025

SQL injection in WPSchoolPress before 2.2.5 allows remote authenticated users with the Teacher role to execute injected SQL via ClassID. The student-list handler applies esc_sql() to the POSTed ClassID value but interpolates it into an unquoted, unprepared query, allowing injected SQL syntax to alter execution. Teacher access to wp-admin/admin.php?page=sch-student is sufficient; the published proof of concept demonstrates time-based query execution with SLEEP(10).

CVSS severity8.8
High
EPSS probability0.72%
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 WPSchoolPress before 2.2.5 allows remote authenticated users with the Teacher role to execute injected SQL via ClassID. The student-list handler applies esc_sql() to the POSTed ClassID value but interpolates it into an unquoted, unprepared query, allowing injected SQL syntax to alter execution. Teacher access to wp-admin/admin.php?page=sch-student is sufficient; the published proof of concept demonstrates time-based query execution with SLEEP(10).

The record

CVE
CVE-2023-4776
Published
Oct 16, 2023
Updated
Apr 23, 2025
Vendor
WPSchoolPress Team
Product
WPSchoolPress
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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 <2.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPSchoolPress Team · WPSchoolPressversion=0 <2.2.5

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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.

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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