CVE-2023-26146Public exploitNetwork attack vector

Browser script execution via unescaped directory filenames

Published Sep 29, 2023 · Updated Sep 23, 2024

Cross-site scripting in ithewei libhv before 1.3.3 allows attackers to execute script in a visitor's browser via a crafted filename. The http/server/http_page.cpp directory-index generator inserts file names into HTML without escaping HTML metacharacters. Exploitation requires a maliciously named file to be served and a user to open its directory listing, enabling script execution in that site's browser origin.

CVSS severity6.1
Medium
EPSS probability0.38%
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 ithewei libhv before 1.3.3 allows attackers to execute script in a visitor's browser via a crafted filename. The http/server/http_page.cpp directory-index generator inserts file names into HTML without escaping HTML metacharacters. Exploitation requires a maliciously named file to be served and a user to open its directory listing, enabling script execution in that site's browser origin.

The record

CVE
CVE-2023-26146
Published
Sep 29, 2023
Updated
Sep 23, 2024
Vendor
ithewei
Product
libhv
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=0 <=*
  2. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ithewei · libhvversion=0 <=*; version=0 <*

Published CVSS scores

6.1SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

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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