CVE-2024-23188Network attack vector

Session-context script execution via crafted attachment names

Published May 6, 2024 · Updated Feb 13, 2025

Stored XSS in the OX App Suite frontend through 8.21 allows remote attackers to execute script code via crafted attachment names. The frontend embeds attacker-controlled attachment-name information into the web interface without neutralizing script-bearing content. A user must interact with the malicious email; successful execution can issue API requests or extract information from the user's account.

CVSS severity6.5
Medium
EPSS probability0.53%
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 the OX App Suite frontend through 8.21 allows remote attackers to execute script code via crafted attachment names. The frontend embeds attacker-controlled attachment-name information into the web interface without neutralizing script-bearing content. A user must interact with the malicious email; successful execution can issue API requests or extract information from the user's account.

The record

CVE
CVE-2024-23188
Published
May 6, 2024
Updated
Feb 13, 2025
Vendor
Open-Xchange GmbH
Product
OX App Suite
Classifications
CWE-79, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=0 <=8.21
  2. Affected versionversion=8.21 <=8.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open-Xchange GmbH · OX App Suiteversion=0 <=8.21; version=8.21 <=8.22

Published CVSS scores

6.5Open-Xchange GmbHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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')
T1204User 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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