CVE-2023-0470Public exploitNetwork attack vector

Stored script execution via unencoded domain names

Published Jan 26, 2023 · Updated Mar 31, 2025

Stored XSS in Modoboa before 2.0.4 allows remote authenticated users to execute JavaScript in another user's browser via a domain name. The domain administration code inserts stored domain text from a title attribute and the domain-name field into HTML sinks without encoding it. The attacker needs domain-management access, and a victim must view the affected administrative interface; the script runs with that victim's browser privileges.

CVSS severity7.1
High
EPSS probability0.62%
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 Modoboa before 2.0.4 allows remote authenticated users to execute JavaScript in another user's browser via a domain name. The domain administration code inserts stored domain text from a title attribute and the domain-name field into HTML sinks without encoding it. The attacker needs domain-management access, and a victim must view the affected administrative interface; the script runs with that victim's browser privileges.

The record

CVE
CVE-2023-0470
Published
Jan 26, 2023
Updated
Mar 31, 2025
Vendor
Modoboa
Product
Modoboa
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 2025Record 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=unspecified <2.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Modoboa · Modoboaversion=unspecified <2.0.4

Published CVSS scores

5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.1huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1059.007JavaScript/JScript

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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