CVE-2023-53922

Name: CVE-2023-53922
Creator: NVD / NIST
Published: 2025-12-17T23:15:51.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2023-53922 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. TinyWebGallery v2.5 contains a remote code execution vulnerability in the admin upload functionality that allows unauthenticated attackers to upload malicious PHP files. Attackers can upload .phar files with embedded system commands to execute arbitrary code on the server by accessing the uploaded file's URL.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

TinyWebGallery v2.5 contains a remote code execution vulnerability in the admin upload functionality that allows unauthenticated attackers to upload malicious PHP files. Attackers can upload .phar files with embedded system commands to execute arbitrary code on the server by accessing the uploaded file's URL.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.93%

56.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Tinywebgallery	Tinywebgallery	2.5

References

http://www.tinywebgallery.com/Product
https://www.exploit-db.com/exploits/51443Exploit, Third Party Advisory, VDB Entry
https://www.vulncheck.com/advisories/tinywebgallery-remote-code-execution-via-unrestricted-file-uploadExploit, Third Party Advisory
https://www.exploit-db.com/exploits/51443Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Dec 17, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-53922?

How severe is CVE-2023-53922?

CVE-2023-53922 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2023-53922?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-53922?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST