CVE-2022-40317Public exploitNetwork attack vector

Script execution via encoded JavaScript URI

Published Sep 9, 2022 · Updated Aug 3, 2024

Stored XSS in OpenKM Community Edition 6.3.11 allows remote authenticated users to run scripts in a victim's browser through notes. FormatUtil.sanitizeInput omitted HTML-entity-encoded javascript URLs from its regular-expression filters, preserving a script-bearing A element. A low-privileged user can store the payload, but another user must click the rendered link before it can capture input, redirect navigation, or submit data in that user's session.

CVSS severity5.4
Medium
EPSS probability1.09%
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 OpenKM Community Edition 6.3.11 allows remote authenticated users to run scripts in a victim's browser through notes. FormatUtil.sanitizeInput omitted HTML-entity-encoded javascript URLs from its regular-expression filters, preserving a script-bearing A element. A low-privileged user can store the payload, but another user must click the rendered link before it can capture input, redirect navigation, or submit data in that user's session.

The record

CVE
CVE-2022-40317
Published
Sep 9, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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