CVE-2024-40111Public exploitNetwork attack vector

Stored XSS via unsanitized page content

Published Aug 23, 2024 · Updated Aug 26, 2024

Stored XSS in Automad 2.0.0-alpha.4 allows remote authenticated users to execute JavaScript in visitors' browsers via page content. The dashboard page editor submits a crafted HTML event handler in the Main content block to /_api/page/data, which stores it in the flat-file CMS and renders it on the public page without effective neutralization. Administrative access is required to save the payload, and execution requires another user to visit the affected page, exposing that browser session's data and page actions.

CVSS severity4.8
Medium
EPSS probability0.83%
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 Automad 2.0.0-alpha.4 allows remote authenticated users to execute JavaScript in visitors' browsers via page content. The dashboard page editor submits a crafted HTML event handler in the Main content block to /_api/page/data, which stores it in the flat-file CMS and renders it on the public page without effective neutralization. Administrative access is required to save the payload, and execution requires another user to visit the affected page, exposing that browser session's data and page actions.

The record

CVE
CVE-2024-40111
Published
Aug 23, 2024
Updated
Aug 26, 2024
Vendor
Automad
Product
Automad
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2024Record 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=2.0.0-alpha.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Automad · Automadversion=2.0.0-alpha.4

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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