CVE-2020-29448Network attack vector

Unauthenticated file read via incorrect path check

Published Feb 18, 2021 · Updated Sep 17, 2024

Path access control bypass in Atlassian Confluence Server and Data Center allows remote attackers to read protected deployment files. ConfluenceResourceDownloadRewriteRule applies an incorrect path access check to crafted resource-download paths, permitting reads beneath WEB-INF and META-INF. Exposure requires network access but no authentication and affects versions before 6.13.18, 6.14.0 through 7.4.5, or 7.5.0 through 7.8.2.

CVSS severity5.3
Medium
EPSS probability2.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path access control bypass in Atlassian Confluence Server and Data Center allows remote attackers to read protected deployment files. ConfluenceResourceDownloadRewriteRule applies an incorrect path access check to crafted resource-download paths, permitting reads beneath WEB-INF and META-INF. Exposure requires network access but no authentication and affects versions before 6.13.18, 6.14.0 through 7.4.5, or 7.5.0 through 7.8.2.

The record

CVE
CVE-2020-29448
Published
Feb 18, 2021
Updated
Sep 17, 2024
Vendor
Atlassian
Product
Confluence Data Center
Classifications
T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.14.0 <unspecified
  2. Affected versionversion=7.5.0 <unspecified
  3. Affected versionversion=unspecified <6.13.18
  4. Affected versionversion=unspecified <7.4.6
  5. Affected versionversion=unspecified <7.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Atlassian · Confluence Data Centerversion=6.14.0 <unspecified; version=7.5.0 <unspecified; version=unspecified <6.13.18; version=unspecified <7.4.6; version=unspecified <7.8.3
Atlassian · Confluence Serverversion=6.14.0 <unspecified; version=7.5.0 <unspecified; version=unspecified <6.13.18; version=unspecified <7.4.6; version=unspecified <7.8.3

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application
T1005Data from Local System

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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