CVE-2021-26085

high-risk
Published 2021-08-03

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.

Do I need to act?

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94.0% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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1 public exploit available
50377
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Atlassian

References (5)

Exploit http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Ar...
Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-67893
Exploit http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Ar...
Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-67893
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
55
/ 100
high-risk
Severity 21/34 · High
Exploitability 27/34 · High
Exposure 7/34 · Low