Medium severity · published Oct 2, 2026
CVE-2026-104455
YesWiki before 4.6.7 Read-ACL Bypass via recentchangesrssplus RSS Action
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
YesWiki before 4.6.7 contains an access control bypass vulnerability that allows unauthenticated attackers to read restricted page content via the recentchangesrssplus RSS action. Attackers can request the xml method of a page hosting the action to retrieve 500-character body excerpts of every latest page, including read-restricted drafts and notes.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
before 4.6.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104455
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104455
vendor-advisory
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-89vc-h4r4-h25q
third-party-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-read-acl-bypass-via-recentchangesrssplus-rss-action
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