CVE-2022-45916Public exploitNetwork attack vector

Stored XSS via course-item input validation bypass

Published Dec 7, 2022 · Updated Apr 23, 2025

Stored XSS in ILIAS before 7.16 allows remote authenticated users to execute JavaScript in other users' browsers via course items. Test question and introductory-message filters accept half-open HTML tags, the Long Menu question field applies no filtering, and course-item titles permit injected event handlers. Creating the payload requires course-item authoring rights, such as a tutor role, and execution occurs when another user opens the test or clicks the affected course-item control.

CVSS severity5.4
Medium
EPSS probability0.87%
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 ILIAS before 7.16 allows remote authenticated users to execute JavaScript in other users' browsers via course items. Test question and introductory-message filters accept half-open HTML tags, the Long Menu question field applies no filtering, and course-item titles permit injected event handlers. Creating the payload requires course-item authoring rights, such as a tutor role, and execution occurs when another user opens the test or clicks the affected course-item control.

The record

CVE
CVE-2022-45916
Published
Dec 7, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NVDCVSS: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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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