CVE-2026-120428

EUVD-2026-115237
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.go
https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/usecase/file.go
https://github.com/chaitin/PandaWiki/blob/v3.87.5/web/admin/server.conf
https://github.com/chaitin/PandaWiki/issues/1845
https://vul.yulun.ac.cn/20261101/pandawiki/
https://www.vulncheck.com/advisories/pandawiki-3.65.0-through-3.87.5-stored-xss-via-static-file-pdf-query-string-bypass