CVE-2025-5011Public exploitNetwork attack vector

Stored script execution via unneutralized dynamic content

Published May 21, 2025 · Updated May 21, 2025

Stored cross-site scripting in Hexo Boot 4.3.0 allows remote authenticated users to execute script in visitors' browsers via dynamic posts. The Dynamic List editor accepts an object element carrying a data URL and renders the saved content without neutralizing executable markup on the administration page and public Dynamic section. Administrative access is required to store the payload, and execution requires an administrator or reader to load an affected page; the demonstrated consequence is browser-context data exposure.

CVSS severity4.8
Medium
EPSS probability0.41%
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 Hexo Boot 4.3.0 allows remote authenticated users to execute script in visitors' browsers via dynamic posts. The Dynamic List editor accepts an object element carrying a data URL and renders the saved content without neutralizing executable markup on the administration page and public Dynamic section. Administrative access is required to store the payload, and execution requires an administrator or reader to load an affected page; the demonstrated consequence is browser-context data exposure.

The record

CVE
CVE-2025-5011
Published
May 21, 2025
Updated
May 21, 2025
Vendor
moonlightL
Product
Hexo Boot
Classifications
CWE-94, CWE-79, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. May 21, 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=4.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

moonlightL · Hexo Bootversion=4.3.0

Published CVSS scores

2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
4.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
4.8VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
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')
T1189Drive-by Compromise

Public exploit references

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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