CVE-2017-9505
An attacker who can login to Confluence could receive workbox notifications, which contain the content of comments, for comments added to a page after they started watching it even if they do not have permission to view the page itself.
Does this matter?
Lower severity and a low EPSS score (1.26%). Track it; it rarely justifies an emergency change on its own.
Description
Atlassian Confluence starting with 4.3.0 before 6.2.1 did not check if a user had permission to view a page when creating a workbox notification about new comments. An attacker who can login to Confluence could receive workbox notifications, which contain the content of comments, for comments added to a page after they started watching it even if they do not have permission to view the page itself.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.26% probability · 70th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-276
- Affected
- atlassian/confluence
- Source
- security@atlassian.com
EPSS 1.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/99086Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/CONFSERVER-52560Mitigation, Vendor Advisory
- https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20170613-0_Atlassian_Confluence_Access_Restriction_Bypass_v10.txtExploit, Mitigation, Third Party Advisory
- http://www.securityfocus.com/bid/99086Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/CONFSERVER-52560Mitigation, Vendor Advisory
- https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20170613-0_Atlassian_Confluence_Access_Restriction_Bypass_v10.txtExploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.