CVE-2022-31904Network attack vector

Browser script execution via incorrect input validation

Published Jul 11, 2022 · Updated Jul 9, 2026

Cross-site scripting in EGT-Kommunikationstechnik UG Mediacenter before 2.0 allows remote attackers to run script in a user's browser. Online_Update.php processes untrusted input with incorrect validation; the vendor does not disclose the affected parameter or output context. User interaction is required, and the flaw alone cannot take over the site, although chaining it with arbitrary file write enables full site and customer compromise.

CVSS severity6.1
Medium
EPSS probability0.56%
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 EGT-Kommunikationstechnik UG Mediacenter before 2.0 allows remote attackers to run script in a user's browser. Online_Update.php processes untrusted input with incorrect validation; the vendor does not disclose the affected parameter or output context. User interaction is required, and the flaw alone cannot take over the site, although chaining it with arbitrary file write enables full site and customer compromise.

The record

CVE
CVE-2022-31904
Published
Jul 11, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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