CVE-2024-51499Public exploitNetwork attack vector

Authenticated arbitrary file write via path traversal

Published Nov 18, 2024 · Updated Nov 18, 2024

Path traversal in MarkUs before 2.4.8 allows remote authenticated users to write arbitrary server files via a crafted submission path. The SubmissionsController update_files method joins an untrusted path to the assignment repository without enforcing containment, and RepositoryHelper ultimately writes the supplied file. A student or instructor account with web-submission access can overwrite server-writable paths; code placed in a Rails initializer executes after restart.

CVSS severity7.1
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in MarkUs before 2.4.8 allows remote authenticated users to write arbitrary server files via a crafted submission path. The SubmissionsController update_files method joins an untrusted path to the assignment repository without enforcing containment, and RepositoryHelper ultimately writes the supplied file. A student or instructor account with web-submission access can overwrite server-writable paths; code placed in a Rails initializer executes after restart.

The record

CVE
CVE-2024-51499
Published
Nov 18, 2024
Updated
Nov 18, 2024
Vendor
MarkUs Project
Product
MarkUs
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 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=< 2.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MarkUs Project · MarkUsversion=< 2.4.8

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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