CVE-2024-52793Public exploitNetwork attack vector

Cross-site scripting via unescaped directory filenames

Published Nov 22, 2024 · Updated Nov 26, 2024

Cross-site scripting in Deno Standard Library before 1.0.11 allows attackers to execute script via a crafted directory filename. The serveDir directory-listing renderer places path and entry.name values directly into anchor markup without HTML escaping. Exploitation requires showDirListing to be enabled, an end-user-writable served directory, and a visitor to open the listing; POSIX filenames make the payload straightforward.

CVSS severity5.1
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Deno Standard Library before 1.0.11 allows attackers to execute script via a crafted directory filename. The serveDir directory-listing renderer places path and entry.name values directly into anchor markup without HTML escaping. Exploitation requires showDirListing to be enabled, an end-user-writable served directory, and a visitor to open the listing; POSIX filenames make the payload straightforward.

The record

CVE
CVE-2024-52793
Published
Nov 22, 2024
Updated
Nov 26, 2024
Vendor
Deno Land Inc.
Product
Deno Standard Library
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 2024Record 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=< 1.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Deno Land Inc. · Deno Standard Libraryversion=< 1.0.11

Published CVSS scores

5.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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