CVE-2023-2776Public exploitNetwork attack vector

Authenticated arbitrary file upload via undisclosed validation

Published May 17, 2023 · Updated Jan 21, 2025

Unrestricted file upload in Code Projects Simple Photo Gallery 1.0 allows remote authenticated users to write arbitrary files via upload requests. The CNA record does not identify the upload handler, input field, destination, or validation operation that accepts the untrusted file. Low-privileged access is required; uploaded content can affect application data and service operation, but executable placement is not established.

CVSS severity9.8
Critical
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

Unrestricted file upload in Code Projects Simple Photo Gallery 1.0 allows remote authenticated users to write arbitrary files via upload requests. The CNA record does not identify the upload handler, input field, destination, or validation operation that accepts the untrusted file. Low-privileged access is required; uploaded content can affect application data and service operation, but executable placement is not established.

The record

CVE
CVE-2023-2776
Published
May 17, 2023
Updated
Jan 21, 2025
Vendor
Code Projects
Product
Simple Photo Gallery
Classifications
CWE-434, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 21, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Code Projects · Simple Photo Galleryversion=1.0

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

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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