CVE-2025-9407Public exploitNetwork attack vector

Stored script execution via unneutralized profile signature

Published Aug 25, 2025 · Updated Aug 25, 2025

Stored cross-site scripting in Mtons Mblog 3.0 through 3.5.0 allows remote authenticated users to inject script through a profile signature. The /settings/profile handler stores the signature argument and later renders it in profile content without sufficient output neutralization. A low-privilege account and victim interaction are required; successful exploitation runs attacker-controlled script in the victim's browser.

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 cross-site scripting in Mtons Mblog 3.0 through 3.5.0 allows remote authenticated users to inject script through a profile signature. The /settings/profile handler stores the signature argument and later renders it in profile content without sufficient output neutralization. A low-privilege account and victim interaction are required; successful exploitation runs attacker-controlled script in the victim's browser.

The record

CVE
CVE-2025-9407
Published
Aug 25, 2025
Updated
Aug 25, 2025
Vendor
Mtons
Product
Mblog
Classifications
CWE-79, CWE-94, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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 privilegesauthenticated

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

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
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
3.5VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR
5.4NIST NVDCVSS: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 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

See the directory against your own environment.

Your stack

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