CVE-2023-33387Network attack vector

Credential theft via reflected login-page script injection

Published Jun 22, 2023 · Updated Dec 6, 2024

Reflected XSS in DATEV Personal-Management System Comfort/Comfort Plus 15.1.0 through 16.1.1 P3 allows remote attackers to steal login credentials. The applicant portal's login page reflects attacker-controlled link content without safe output neutralization, but public sources do not identify the affected parameter or code locus. Exploitation requires a targeted user to follow the crafted link and log in, exposing credentials and associated personal data such as application documents.

CVSS severity6.1
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in DATEV Personal-Management System Comfort/Comfort Plus 15.1.0 through 16.1.1 P3 allows remote attackers to steal login credentials. The applicant portal's login page reflects attacker-controlled link content without safe output neutralization, but public sources do not identify the affected parameter or code locus. Exploitation requires a targeted user to follow the crafted link and log in, exposing credentials and associated personal data such as application documents.

The record

CVE
CVE-2023-33387
Published
Jun 22, 2023
Updated
Dec 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 6, 2024Record 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

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1566.002Spearphishing Link

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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