CVE-2026-120428

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/?a=.pdf, bypassing the nginx attachment header to serve HTML inline and steal the panda_wiki_token JWT for session takeover.

Affected Platforms

Weakness Type

CWE-79

References

• https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.g…
• 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-…