Medium severity · published Oct 2, 2026
CVE-2026-104452
YesWiki before 4.6.7 CSRF Attachment Deletion via filemanager Handler
5.4
CVSS
0.1%
EPSS
No
On KEV
Description
YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in the filemanager page handler, which deletes page attachments on GET requests without validating a CSRF token. Attackers can lure a logged-in page owner or administrator into a top-level GET navigation with do=del, erase, or emptytrash, deleting or permanently purging the page's attachments.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% 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-2026-104452
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104452
vendor-advisory
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7m4h-m7qm-hc32
third-party-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-csrf-attachment-deletion-via-filemanager-handler
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