CVE-2023-46851Public exploitNetwork attack vector

Arbitrary file read via unrestricted attachment URLs

Published Nov 7, 2023 · Updated Sep 4, 2024

Information disclosure in Apache Allura 1.0.1 through 1.15.0 allows remote authenticated users to read server files through crafted forum imports. ForgeDiscussionImporter passes each attachment URL to ProjectExtractor, whose urlopen path accepts file:// URLs and attaches the retrieved local content to the imported post. Project-administrator access is required; exposed configuration secrets can enable session forgery and remote code execution.

CVSS severity4.9
Medium
EPSS probability1.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Apache Allura 1.0.1 through 1.15.0 allows remote authenticated users to read server files through crafted forum imports. ForgeDiscussionImporter passes each attachment URL to ProjectExtractor, whose urlopen path accepts file:// URLs and attaches the retrieved local content to the imported post. Project-administrator access is required; exposed configuration secrets can enable session forgery and remote code execution.

The record

CVE
CVE-2023-46851
Published
Nov 7, 2023
Updated
Sep 4, 2024
Vendor
The Apache Software Foundation
Product
Apache Allura
Classifications
CWE-200, CWE-20, CWE-73, T1005, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=1.0.1 <=1.15.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

The Apache Software Foundation · Apache Alluraversion=1.0.1 <=1.15.0

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-20Improper Input Validation
CWE-73External Control of File Name or Path
T1005Data from Local System
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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