MEDIUMCVSS v3.1 5.3Actively exploited · CISA KEV since 2022-03-28Vulnerability

CVE-2021-26085

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.

Properties

Euvd product
Confluence Data Center, Confluence Server
Vulnerability name
Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability
First seen
2025-10-21T23:25:39+00:00
Cvss score
5.3
Epss score
0.99937
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-04-18
Euvd assigner
atlassian
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2022-03-28T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2022-03-28
Score
5.3
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Atlassian
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
In Signal since
initial import (Sep 2026)
Euvd base score
5.3

Related Entities (5)

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CVE-2021-26085 (CVSS v3.1 5.3) — Ninja Signal Threat Intelligence | Ninja Signal