CVE-2025-12658Network attack vector

Stored XSS via unescaped shortcode completion code

Published Nov 11, 2025 · Updated Nov 11, 2025

Stored XSS in MMDeveloper Preload Current Images 1.3 and earlier allows remote authenticated users to inject scripts through a shortcode. The preload_progress_bar handler places the complete shortcode attribute into generated JavaScript without sanitizing the value or escaping it for the output context. Contributor-level access is required to store the payload in a page, and the script executes in the browser whenever that page is accessed.

CVSS severity6.4
Medium
EPSS probability0.22%
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 MMDeveloper Preload Current Images 1.3 and earlier allows remote authenticated users to inject scripts through a shortcode. The preload_progress_bar handler places the complete shortcode attribute into generated JavaScript without sanitizing the value or escaping it for the output context. Contributor-level access is required to store the payload in a page, and the script executes in the browser whenever that page is accessed.

The record

CVE
CVE-2025-12658
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
MMDeveloper
Product
Preload Current Images
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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=* <=1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MMDeveloper · Preload Current Imagesversion=* <=1.3

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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

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Your stack

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