CVE-2025-12400Network attack vector

Stored script injection via missing nonce validation

Published Nov 4, 2025 · Updated Nov 4, 2025

Cross-site request forgery in lmbbox LMB^Box Smileys 3.2 and earlier allows remote attackers to inject stored scripts via forged requests. The manage_page() function accepts setting changes without valid nonce verification and stores attacker-supplied script content in plugin settings. Exploitation requires a site administrator to interact with the forged request; the stored content then executes in affected WordPress pages.

CVSS severity6.1
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site request forgery in lmbbox LMB^Box Smileys 3.2 and earlier allows remote attackers to inject stored scripts via forged requests. The manage_page() function accepts setting changes without valid nonce verification and stores attacker-supplied script content in plugin settings. Exploitation requires a site administrator to interact with the forged request; the stored content then executes in affected WordPress pages.

The record

CVE
CVE-2025-12400
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
lmbbox
Product
LMB^Box Smileys
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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=* <=3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

lmbbox · LMB^Box Smileysversion=* <=3.2

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo