CVE-2023-51500Network attack vector

Subscriber-level deletion via unsanitized font path

Published Apr 17, 2024 · Updated Apr 28, 2026

Missing authorization in Undsgn Uncode Core 2.8.8 and earlier allows remote authenticated users to delete server files and directories. The AJAX-bound delete_download function appends the unsanitized font_family request value to the font directory and recursively deletes the resulting path. Subscriber-level WordPress access is sufficient, and traversal sequences can remove arbitrary server directories, interrupting the hosted site.

CVSS severity7.7
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Undsgn Uncode Core 2.8.8 and earlier allows remote authenticated users to delete server files and directories. The AJAX-bound delete_download function appends the unsanitized font_family request value to the font directory and recursively deletes the resulting path. Subscriber-level WordPress access is sufficient, and traversal sequences can remove arbitrary server directories, interrupting the hosted site.

The record

CVE
CVE-2023-51500
Published
Apr 17, 2024
Updated
Apr 28, 2026
Vendor
Undsgn
Product
Uncode Core
Classifications
CWE-862, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=2.8.8 changes=[{"at":"2.8.9","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Undsgn · Uncode Coreversion=n/a <=2.8.8 changes=[{"at":"2.8.9","status":"unaffected"}]

Published CVSS scores

7.7PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

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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