CVE-2022-0936Network attack vector

Stored XSS via inline attachment rendering

Published Apr 11, 2022 · Updated Aug 2, 2024

Stored XSS in Autolab before 2.8.0 allows remote authenticated users to execute script in another user's browser via a crafted attachment. AttachmentsController#show passes an uploader-controlled MIME type to Rails send_file with inline disposition, so the browser renders active attachment content in the Autolab origin. Instructor access is required to upload the payload, and a student or higher-privileged user must open the attachment for same-origin script execution.

CVSS severity7.6
High
EPSS probability0.66%
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 Autolab before 2.8.0 allows remote authenticated users to execute script in another user's browser via a crafted attachment. AttachmentsController#show passes an uploader-controlled MIME type to Rails send_file with inline disposition, so the browser renders active attachment content in the Autolab origin. Instructor access is required to upload the payload, and a student or higher-privileged user must open the attachment for same-origin script execution.

The record

CVE
CVE-2022-0936
Published
Apr 11, 2022
Updated
Aug 2, 2024
Vendor
Autolab Project
Product
Autolab
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 11, 2022CVE 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=unspecified <2.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Autolab Project · Autolabversion=unspecified <2.8.0

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
7.6huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 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')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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