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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Chaitin PandaWiki unaffected
Version Status Constraints
3.65.0 affected ≤ 3.87.5

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.go cve-icon cve-icon
https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/usecase/file.go cve-icon cve-icon
https://github.com/chaitin/PandaWiki/blob/v3.87.5/web/admin/server.conf cve-icon cve-icon
https://github.com/chaitin/PandaWiki/issues/1845 cve-icon cve-icon
https://vul.yulun.ac.cn/20261101/pandawiki/ cve-icon cve-icon
https://www.vulncheck.com/advisories/pandawiki-3.65.0-through-3.87.5-stored-xss-via-static-file-pdf-query-string-bypass cve-icon cve-icon
History

Mon, 02 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 02 Nov 2026 14:30:00 +0000

Type Values Removed Values Added
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.
Title PandaWiki 3.65.0 through 3.87.5 Stored XSS via /static-file/ PDF Query-String Bypass
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-02T17:34:57.661Z

Reserved: 2026-11-02T12:42:11.162Z

Link: CVE-2026-120428

cve-icon Vulnrichment

Updated: 2026-11-02T17:15:24.396Z

cve-icon NVD

Status : Deferred

Published: 2026-11-02T15:17:24.010

Modified: 2026-11-02T19:35:33.347

Link: CVE-2026-120428

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T15:30:14Z

Weaknesses