CVE-2021-26085
KEV RANSOMWAREMEDIUM 5.3EPSS 99.9%
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.
- 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 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 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N - EPSS
- 99.94% chance of exploitation in the next 30 days, 100th percentile
- CISA KEV
- added 2022-03-28, used in ransomware campaigns
- Nuclei
- medium · CWE-425
- Published
- 2021-08-03
- Updated
- 2025-10-21
Proof-of-concept exploits (3)
- http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-F…
- ColdFusionX/CVE-2021-2608513★ · 2021-10-12
- zeroc00I/CVE-2021-260850★ · 2021-10-06
Nuclei templates (1)
ExploitDB entries (1)
Exploit collections (2)
- chaitin/xray/blob/master/pocs/confluence-cve-2021-26085-arbitrary-file-read.yml
- zan8in/afrog/blob/main/pocs/afrog-pocs/CVE/2021/CVE-2021-26085.yaml