CVE-2023-6353Public exploitNetwork attack vector

Unauthenticated file access via enky parameter manipulation

Published Nov 30, 2023 · Updated Aug 25, 2025

Authentication bypass in Tyler Technologies eFile & Serve allows remote attackers to view, upload, and delete files through Upload.aspx. The endpoint processes attacker-controlled enky parameter values for file operations without requiring authentication; deeper implementation details are not public. Network access alone reaches the flaw, and successful requests can disclose, add, or remove court-related files.

CVSS severity5.3
Medium
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Tyler Technologies eFile & Serve allows remote attackers to view, upload, and delete files through Upload.aspx. The endpoint processes attacker-controlled enky parameter values for file operations without requiring authentication; deeper implementation details are not public. Network access alone reaches the flaw, and successful requests can disclose, add, or remove court-related files.

The record

CVE
CVE-2023-6353
Published
Nov 30, 2023
Updated
Aug 25, 2025
Vendor
Tyler Technologies
Product
eFile & Serve
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tyler Technologies · eFile & Serveversion=0

Published CVSS scores

5.3CISACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
9.4NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo