CVE-2022-39027Network attack vector

Stored XSS via unfiltered forum posts

Published Oct 31, 2022 · Updated May 6, 2025

Stored XSS in U-Office Force through 20.50.7821D Build:202104sp1 allows remote authenticated users to execute JavaScript via forum posts. The Forum new-post function stores special characters without sufficient filtering, so attacker-supplied script is retained and rendered to readers. General user privileges are required, and execution depends on another user viewing the stored post, exposing or modifying data in that user's browser session.

CVSS severity5.4
Medium
EPSS probability0.46%
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 U-Office Force through 20.50.7821D Build:202104sp1 allows remote authenticated users to execute JavaScript via forum posts. The Forum new-post function stores special characters without sufficient filtering, so attacker-supplied script is retained and rendered to readers. General user privileges are required, and execution depends on another user viewing the stored post, exposing or modifying data in that user's browser session.

The record

CVE
CVE-2022-39027
Published
Oct 31, 2022
Updated
May 6, 2025
Vendor
e-Excellence Inc.
Product
U-Office Force
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 31, 2022CVE publishedPublication date reported by the CVE source.
  2. May 6, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=20.50.7821D Build:202104sp1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

e-Excellence Inc. · U-Office Forceversion=unspecified <=20.50.7821D Build:202104sp1

Published CVSS scores

5.4TWCERT/CCCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-site Scripting (XSS)
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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