CVE-2024-28237Public exploit

Browser script execution via crafted image MIME type

Published Mar 18, 2024 · Updated Aug 2, 2024

Cross-site scripting in OctoPrint 1.9.3 and earlier allows attackers to execute JavaScript through a crafted webcam snapshot URL. The Classic Webcam snapshot test inserts the response's attacker-controlled MIME type into an HTML string used to create the preview image, allowing an injected image attribute to become executable markup. An administrator must configure the URL and click Test; the resulting script runs in that administrator's browser and can read or change sensitive settings or interrupt prints.

CVSS severity4.0
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in OctoPrint 1.9.3 and earlier allows attackers to execute JavaScript through a crafted webcam snapshot URL. The Classic Webcam snapshot test inserts the response's attacker-controlled MIME type into an HTML string used to create the preview image, allowing an injected image attribute to become executable markup. An administrator must configure the URL and click Test; the resulting script runs in that administrator's browser and can read or change sensitive settings or interrupt prints.

The record

CVE
CVE-2024-28237
Published
Mar 18, 2024
Updated
Aug 2, 2024
Vendor
OctoPrint
Product
OctoPrint
Classifications
CWE-79, T1203
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <=1.9.3
  2. Affected versionversion=<= 1.9.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

OctoPrint · OctoPrintversion=0 <=1.9.3; version=<= 1.9.3

Published CVSS scores

4.0GitHubCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
5.4NISTCVSS:3.1/AV:N/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
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

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Your stack

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