CVE-2025-9431Public exploitNetwork attack vector

Unauthenticated script execution via search keyword

Published Aug 26, 2025 · Updated Aug 26, 2025

Cross-site scripting in Mtons Mblog 3.0 through 3.5.0 allows remote attackers to execute script in a user's browser via search. The published record identifies the kw parameter at /search but does not disclose the server function, template, or exact output-neutralization failure. No authentication is required, but user interaction is required to render the crafted response; no server-side execution or service interruption is reported.

CVSS severity6.1
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Mtons Mblog 3.0 through 3.5.0 allows remote attackers to execute script in a user's browser via search. The published record identifies the kw parameter at /search but does not disclose the server function, template, or exact output-neutralization failure. No authentication is required, but user interaction is required to render the crafted response; no server-side execution or service interruption is reported.

The record

CVE
CVE-2025-9431
Published
Aug 26, 2025
Updated
Aug 26, 2025
Vendor
Mtons
Product
Mblog
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0
  2. Affected versionversion=3.1
  3. Affected versionversion=3.2
  4. Affected versionversion=3.3
  5. Affected versionversion=3.4
  6. Affected versionversion=3.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mtons · Mblogversion=3.0; version=3.1; version=3.2; version=3.3; version=3.4; version=3.5.0

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR
4.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

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
Privilegesunauthenticated
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

See the directory against your own environment.

Your stack

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