VULNERABILITY INTELLIGENCE

CVE-2021-26085

CVSS score5.3 MEDIUM

EPSS probability99.94%

CISA KEVKnown exploited vulnerability

Published2021-08-03

Last modified2026-06-17

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

Known Exploited Vulnerability

Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

Vendor / product: Atlassian / Confluence Server

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.

Weakness classification

nvd@nist.gov: CWE-425
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-425

Primary references

security@atlassian.com — Exploit, Third Party Advisory, VDB Entry
security@atlassian.com — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource