CVE-2021-43800Network attack vector

Arbitrary file read via unsanitized asset path

Published Dec 6, 2021 · Updated Aug 4, 2024

Path traversal in Requarks Wiki.js before 2.5.254 allows remote attackers to read arbitrary files through crafted asset URLs. The server/helpers/page.js path parser passed raw asset paths toward storage-module handling without removing Windows backslashes, doubled slashes, or repeated dot sequences. Exploitation requires a Windows host, an enabled local asset-cache module such as Local File System or Git, and no intermediary that strips the crafted URL.

CVSS severity7.5
High
EPSS probability1.74%
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 Requarks Wiki.js before 2.5.254 allows remote attackers to read arbitrary files through crafted asset URLs. The server/helpers/page.js path parser passed raw asset paths toward storage-module handling without removing Windows backslashes, doubled slashes, or repeated dot sequences. Exploitation requires a Windows host, an enabled local asset-cache module such as Local File System or Git, and no intermediary that strips the crafted URL.

The record

CVE
CVE-2021-43800
Published
Dec 6, 2021
Updated
Aug 4, 2024
Vendor
Requarks.io
Product
Wiki.js
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 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=< 2.5.254

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Requarks.io · Wiki.jsversion=< 2.5.254

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3NISTAV:N/AC:M/Au:N/C:P/I:N/A:N
7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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