CVE-2022-4401Public exploitNetwork attack vector

Browser script execution via undisclosed input handling

Published Dec 11, 2022 · Updated Oct 15, 2024

Cross-site scripting in Pallidlight Online Course Selection System allows remote authenticated users to run script in another user's browser. The published record and linked references do not identify the affected function, input, or output-encoding failure. Low-privilege access and victim interaction are required, and the documented impact is limited to browser-context integrity.

CVSS severity3.5
Low
EPSS probability0.36%
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 Pallidlight Online Course Selection System allows remote authenticated users to run script in another user's browser. The published record and linked references do not identify the affected function, input, or output-encoding failure. Low-privilege access and victim interaction are required, and the documented impact is limited to browser-context integrity.

The record

CVE
CVE-2022-4401
Published
Dec 11, 2022
Updated
Oct 15, 2024
Vendor
Pallidlight
Product
Online Course Selection System
Classifications
CWE-707, CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 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=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pallidlight · Online Course Selection Systemversion=n/a

Published CVSS scores

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

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-707Improper Neutralization
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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