[ CVE-2026-120428 · Published 2 Nov 2026 ]
Vulnerability in Chaitin PandaWiki
CVSS 6.1
EPSS <1%No fix listed yet
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
[ Description ]Official description
PandaWiki 3.65.0 through 3.87.5 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to upload HTML files with image extensions via /share/v1/common/file/upload. Attackers can lure administrators to /static-file/<key>?a=.pdf, bypassing the nginx attachment header to serve HTML inline and steal the panda_wiki_token JWT for session takeover.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.go
- github.com/chaitin/PandaWiki/blob/v3.87.5/backend/usecase/file.go
- github.com/chaitin/PandaWiki/blob/v3.87.5/web/admin/server.conf
- github.com/chaitin/PandaWiki/issues/1845
- vul.yulun.ac.cn/20261101/pandawiki
- www.vulncheck.com/advisories/pandawiki-3.65.0-through-3.87.5-stored-xss-via-static-file…