CVE-2023-27040Public exploitNetwork attack vector

Unauthenticated code execution via login SQL injection

Published Mar 16, 2023 · Updated Feb 26, 2025

Remote code execution in Simple Image Gallery 1.0 allows remote attackers to execute arbitrary server commands through its login workflow. The login endpoint inserts the username into an SQL query without neutralizing quote syntax, allowing a tautology to establish an administrative session; the account-update handler then accepts a PHP file as the profile image. No credentials or user interaction are required, and uploaded PHP executes with the web server account's privileges.

CVSS severity9.8
Critical
EPSS probability1.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Simple Image Gallery 1.0 allows remote attackers to execute arbitrary server commands through its login workflow. The login endpoint inserts the username into an SQL query without neutralizing quote syntax, allowing a tautology to establish an administrative session; the account-update handler then accepts a PHP file as the profile image. No credentials or user interaction are required, and uploaded PHP executes with the web server account's privileges.

The record

CVE
CVE-2023-27040
Published
Mar 16, 2023
Updated
Feb 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1505.003Web Shell
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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