CVE-2024-53387Public exploitNetwork attack vector

Cross-site scripting via clobbered resource base URL

Published Mar 3, 2025 · Updated Mar 4, 2025

DOM clobbering in UMeditor 1.2.3 allows attackers to execute scripts by injecting a crafted HTML anchor element. umeditor.config.js reads window.UMEDITOR_HOME_URL without verifying that the value is a string, so named DOM access lets an anchor with that id replace the configured base URL and load attacker-hosted resources. Exploitation requires attacker-controlled HTML to be rendered with UMeditor in a user's browser; successful execution runs script in that page's origin.

CVSS severity8.8
High
EPSS probability0.62%
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

DOM clobbering in UMeditor 1.2.3 allows attackers to execute scripts by injecting a crafted HTML anchor element. umeditor.config.js reads window.UMEDITOR_HOME_URL without verifying that the value is a string, so named DOM access lets an anchor with that id replace the configured base URL and load attacker-hosted resources. Exploitation requires attacker-controlled HTML to be rendered with UMeditor in a user's browser; successful execution runs script in that page's origin.

The record

CVE
CVE-2024-53387
Published
Mar 3, 2025
Updated
Mar 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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

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