CVE-2023-50566Public exploitNetwork attack vector

Stored script execution via unsanitized registration number

Published Dec 14, 2023 · Updated Aug 2, 2024

Stored XSS in EyouCMS 1.6.5-UTF8-SP1 allows remote authenticated users to execute arbitrary script in another user's browser. The basic-information code-mode editor stores the Public Security Registration Number value as HTML without neutralizing attacker-controlled markup before rendering it. Access to edit that field and a user who views the affected page are required, bounding impact to actions and data available in the viewer's session.

CVSS severity5.4
Medium
EPSS probability0.38%
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 EyouCMS 1.6.5-UTF8-SP1 allows remote authenticated users to execute arbitrary script in another user's browser. The basic-information code-mode editor stores the Public Security Registration Number value as HTML without neutralizing attacker-controlled markup before rendering it. Access to edit that field and a user who views the affected page are required, bounding impact to actions and data available in the viewer's session.

The record

CVE
CVE-2023-50566
Published
Dec 14, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS: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.

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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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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