CVE-2022-38803Public exploitNetwork attack vector

Authenticated local file read via PDF-export XSS

Published Nov 30, 2022 · Updated Apr 24, 2025

Stored XSS in ZKTeco BioTime before 8.5.4 allows remote authenticated users to read local files through PDF data exports. The leave, overtime, and manual-log reason fields are not encoded before PDF generation, so the generator's headless browser executes stored JavaScript. An employee account and a PDF export are required; successful execution exposes files readable by the PDF-rendering process without granting file modification.

CVSS severity6.8
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in ZKTeco BioTime before 8.5.4 allows remote authenticated users to read local files through PDF data exports. The leave, overtime, and manual-log reason fields are not encoded before PDF generation, so the generator's headless browser executes stored JavaScript. An employee account and a PDF export are required; successful execution exposes files readable by the PDF-rendering process without granting file modification.

The record

CVE
CVE-2022-38803
Published
Nov 30, 2022
Updated
Apr 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/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.

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')
T1005Data from Local System

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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