PandaWiki 3.65.0 through 3.87.5 contains a stored cross-site scripting vulnerability that allows unauthenticated
Source GCVE Database
Not known to be exploited · CVSS 5.1 Medium.
Data as of 2 Nov 2026, 16:58 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.1 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 6.1 |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ChaitinPandaWiki | Affected
| Fixed in– |
GitHubPandaWikipkg:github/PandaWikiOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, administrators should be cautious about clicking on untrusted links that could exploit this vulnerability. Consider restricting or monitoring file upload functionality and validating file types more strictly to prevent HTML content disguised as images.
Description
PandaWiki versions 3.65.0 through 3.87.5 have a stored cross-site scripting (XSS) vulnerability. Unauthenticated attackers can upload HTML files disguised with image extensions via the /share/v1/common/file/upload endpoint. By tricking administrators into visiting a crafted URL, attackers can bypass nginx's attachment header to serve the HTML inline, enabling theft of the panda_wiki_token JWT and potential session takeover.
References
- nvd.nist.gov/vuln/detail/CVE-2026-120428 (opens in a new tab)
- github.com/chaitin/PandaWiki/issues/1845 (opens in a new tab)
- github.com/chaitin/PandaWiki/blob/v3.87.5/backend/handler/share/common.go (opens in a new tab)
- github.com/chaitin/PandaWiki/blob/v3.87.5/backend/usecase/file.go (opens in a new tab)
- github.com/chaitin/PandaWiki/blob/v3.87.5/web/admin/server.conf (opens in a new tab)
- vul.yulun.ac.cn/20261101/pandawiki (opens in a new tab)
- vulncheck.com/advisories/pandawiki-3.65.0-through-3.87.5-stored-xss-via-static-file-pdf-query-string-bypass (opens in a new tab)