KEVIntel
Back to KEVs
5.3
CVSS
Medium

CVE-2021-26085

PUBLISHED

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read...

Exploited in the wild Used in malware Remote Low complexity No user interaction
Vendor
Atlassian
Product
Confluence Server, Confluence Data Center
Published
Aug 03, 2021
EPSS
—

Description

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read vulnerability in the /s/ endpoint. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.

cisa malware ransomware nuclei_scanner

CVSS scores

CVSS v3.1 5.3 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2.0 5.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitation status

Exploited in the wild

Recorded 2022-03-28 00:00:00 UTC · Source

Used in malware

Recorded 2022-03-28 00:00:00 UTC · Source

SSVC decision points

Exploitation
active
Automatable
Yes
Technical impact
partial

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source Added
CISA Mar 28, 2022

Scanner integrations

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-26085.yaml Apr 25, 2025

Potential proof of concepts

These PoCs are unverified and could contain malware. Use at your own risk.

ColdFusionX/CVE-2021-26085

github · Created 2021-10-05 08:20:25 UTC · 14 stars

Atlassian Confluence Server 7.5.1 Pre-Authorization Arbitrary File Read vulnerability (CVE-2021-26085)

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Exploit Used in Malware

  • Added to KEVIntel

  • Detected by Nuclei