CVE-2026-3742Public exploitNetwork attack vector

Stored script execution via unfiltered Title update

Published Mar 8, 2026 · Updated Mar 8, 2026

Stored XSS in YiFang CMS 2.0.5 allows remote authenticated users to execute script in a viewer's browser through a crafted Title value. The update function in app/db/admin/D_singlePage.php stores the Title field directly in the database without filtering, and the single-page list later renders it as active content. Low-privileged application access is required to submit the value, and exploitation requires another user to open the affected list, enabling attacker-controlled script execution in that user's browser.

CVSS severity5.4
Medium
EPSS probability0.20%
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 YiFang CMS 2.0.5 allows remote authenticated users to execute script in a viewer's browser through a crafted Title value. The update function in app/db/admin/D_singlePage.php stores the Title field directly in the database without filtering, and the single-page list later renders it as active content. Low-privileged application access is required to submit the value, and exploitation requires another user to open the affected list, enabling attacker-controlled script execution in that user's browser.

The record

CVE
CVE-2026-3742
Published
Mar 8, 2026
Updated
Mar 8, 2026
Vendor
YiFang
Product
YiFang CMS
Classifications
CWE-79, CWE-94, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 8, 2026Record 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=2.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

YiFang · YiFang CMSversion=2.0.5

Published CVSS scores

5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
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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