CVE-2025-9101Public exploitNetwork attack vector

Stored XSS via unencoded tag names

Published Aug 18, 2025 · Updated Aug 18, 2025

Stored XSS in ZHENFENG13 MyBlog 1.0.0 and earlier allows remote authenticated users to execute scripts via crafted tag names. The /admin/tags/save endpoint stores user-controlled tag names without strict validation, and /admin/tags renders them without output encoding. Exploitation requires an authenticated tag submission or an administrator induced to submit one; the script runs when the tag-management page is opened.

CVSS severity5.4
Medium
EPSS probability0.25%
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 ZHENFENG13 MyBlog 1.0.0 and earlier allows remote authenticated users to execute scripts via crafted tag names. The /admin/tags/save endpoint stores user-controlled tag names without strict validation, and /admin/tags renders them without output encoding. Exploitation requires an authenticated tag submission or an administrator induced to submit one; the script runs when the tag-management page is opened.

The record

CVE
CVE-2025-9101
Published
Aug 18, 2025
Updated
Aug 18, 2025
Vendor
ZHENFENG13
Product
My-Blog
Classifications
CWE-79, CWE-94, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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
2.0VulDBCVSS: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
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/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 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')
CWE-94Improper Control of Generation of Code ('Code Injection')
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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