CVE-2025-8740Public exploitNetwork attack vector

Stored script execution via unencoded category names

Published Aug 8, 2025 · Updated Aug 12, 2025

Stored cross-site scripting in ZHENFENG13 MyBlog 1.0 allows remote authenticated users to execute script through a crafted category name. The /admin/categories/save handler stores categoryName without strict validation, while category, blog, and index views render the value without proper output encoding. Administrative access is required for payload submission; opening an affected page then executes the stored script in the browser.

CVSS severity5.4
Medium
EPSS probability0.27%
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 ZHENFENG13 MyBlog 1.0 allows remote authenticated users to execute script through a crafted category name. The /admin/categories/save handler stores categoryName without strict validation, while category, blog, and index views render the value without proper output encoding. Administrative access is required for payload submission; opening an affected page then executes the stored script in the browser.

The record

CVE
CVE-2025-8740
Published
Aug 8, 2025
Updated
Aug 12, 2025
Vendor
ZHENFENG13
Product
My-Blog
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ZHENFENG13 · My-Blogversion=1.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/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-94Improper Control of Generation of Code ('Code Injection')
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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