CVE-2024-4327Public exploitNetwork attack vector

Script execution via crafted PDF content

Published Apr 30, 2024 · Updated Aug 15, 2024

Cross-site scripting in Apryse WebViewer 10.0 through 10.8 allows remote authenticated users to alter page content via a crafted PDF. The PDF Document Handler lets embedded JavaScript or HTML-equivalent content from PDF text fields or actions reach the host page without adequate neutralization. Exploitation requires a user to open the malicious PDF in the editor; no direct confidentiality or availability impact is reported.

CVSS severity3.5
Low
EPSS probability0.45%
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 Apryse WebViewer 10.0 through 10.8 allows remote authenticated users to alter page content via a crafted PDF. The PDF Document Handler lets embedded JavaScript or HTML-equivalent content from PDF text fields or actions reach the host page without adequate neutralization. Exploitation requires a user to open the malicious PDF in the editor; no direct confidentiality or availability impact is reported.

The record

CVE
CVE-2024-4327
Published
Apr 30, 2024
Updated
Aug 15, 2024
Vendor
Apryse
Product
WebViewer
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2024Record 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=10.0
  2. Affected versionversion=10.0 <=10.8
  3. Affected versionversion=10.1
  4. Affected versionversion=10.2
  5. Affected versionversion=10.3
  6. Affected versionversion=10.4
  7. Affected versionversion=10.5
  8. Affected versionversion=10.6
  9. Affected versionversion=10.7
  10. Affected versionversion=10.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Apryse · WebViewerversion=10.0; version=10.0 <=10.8; version=10.1; version=10.2; version=10.3; version=10.4; version=10.5; version=10.6; version=10.7; version=10.8

Published CVSS scores

4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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.

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')
T1203Exploitation for Client Execution

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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