CVE-2023-1799Public exploitNetwork attack vector

Victim browser script execution via stored tag_tag input

Published Apr 2, 2023 · Updated Feb 11, 2025

Stored cross-site scripting in EyouCMS 1.5.0 through 1.5.4 allows remote authenticated users to inject script through login.php. The login.php handler stores the tag_tag parameter without neutralizing it before the value is used in generated page output. Low-privileged access is required, and a victim must view the affected output for the script to execute in the victim's browser.

CVSS severity3.5
Low
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in EyouCMS 1.5.0 through 1.5.4 allows remote authenticated users to inject script through login.php. The login.php handler stores the tag_tag parameter without neutralizing it before the value is used in generated page output. Low-privileged access is required, and a victim must view the affected output for the script to execute in the victim's browser.

The record

CVE
CVE-2023-1799
Published
Apr 2, 2023
Updated
Feb 11, 2025
Vendor
Hainan Zanzan Network Technology Co., Ltd.
Product
EyouCMS
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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=1.5.0
  2. Affected versionversion=1.5.1
  3. Affected versionversion=1.5.2
  4. Affected versionversion=1.5.3
  5. Affected versionversion=1.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hainan Zanzan Network Technology Co., Ltd. · EyouCMSversion=1.5.0; version=1.5.1; version=1.5.2; version=1.5.3; version=1.5.4

Published CVSS scores

3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/A:N
5.4NVDCVSS: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 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')
T1203Exploitation for Client Execution

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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