Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-26085 |
CWE-ID | CWE-862 |
Exploitation vector | Network |
Public exploit | Vulnerability #1 is being exploited in the wild. |
Vulnerable software Subscribe |
Atlassian Confluence Server Server applications / Web servers |
Vendor | Atlassian |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU57077
Risk: Medium
CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-26085
CWE-ID:
CWE-862 - Missing Authorization
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to missing authorization in the /s/ endpoint. A remote non-authenticated attacker can send a specially crafted HTTP request to the application and view contents of arbitrary files on the system.
Install updates from vendor's website.
Vulnerable software versionsAtlassian Confluence Server: 7.4.0 - 7.12.2
External linkshttp://jira.atlassian.com/browse/CONFSERVER-67893
http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.