{"id":"CVE-2026-120428","title":"PandaWiki 3.65.0 through 3.87.5 Stored XSS via /static-file/ PDF Query-String Bypass","summary":"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 …","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"Chaitin","product":"PandaWiki","affected":["PandaWiki >= 3.65.0 <= 3.87.5"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-02T17:15:22.970624Z"},"exploitAvailable":true,"published":"2026-11-02","updated":"2026-11-02","sourceUpdated":"2026-11-02T17:34:57.661Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120428","references":[{"url":"https://github.com/chaitin/PandaWiki/issues/1845"},{"url":"https://vul.yulun.ac.cn/20261101/pandawiki/"},{"url":"https://github.com/chaitin/PandaWiki/blob/v3.87.5/web/admin/server.conf"},{"url":"https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/usecase/file.go"},{"url":"https://github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.go"},{"url":"https://www.vulncheck.com/advisories/pandawiki-3.65.0-through-3.87.5-stored-xss-via-static-file-pdf-query-string-bypass","label":"VulnCheck Advisory: PandaWiki 3.65.0 through 3.87.5 Stored XSS via /static-file/ PDF Query-String Bypass"}],"tags":["cve.org","exploit-available"],"epss":0.00359,"epssPercentile":0.29817,"ingestedAt":"2026-11-05T19:30:42.736Z","slug":"CVE-2026-120428","body":"## Overview\n\nPandaWiki 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.\n\n## Affected\n\n- `PandaWiki >= 3.65.0 <= 3.87.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}