PyDio Stored XSS Vulnerability

published 2019-05-31 7y ago modified 2026-07-07 4mo ago also GHSA-5ghg-233h-7j79 , PYSEC-2026-902 , EUVD-2022-2583

cvss: 5.4; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

A stored XSS vulnerability exists in the web application of Pydio through 8.2.2 that can be exploited by levering the file upload and file preview features of the application. An authenticated attacker can upload an HTML file containing JavaScript code and afterwards a file preview URL can be used to access the uploaded file. If a malicious user shares an uploaded HTML file containing JavaScript code with another user of the application, and tricks an authenticated victim into accessing a URL that results in the HTML code being interpreted by the web browser, then the included JavaScript code is executed under the context of the victim user session.

Is CVE-2019-10047 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

secureauth.com https://www.secureauth.com/labs/advisories referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
OSV	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	pydio	<=8.2.2	no fix listed

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

secureauth.com /labs/advisories
exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2019-10047
advisory
github.com /mwiatrzyk/pydio
package
packetstormsecurity.com /files/152292/Pydio-8-Command-Execution-Cross-Site-Scripting.html
web
secureauth.com /labs/advisories/pydio-8-multiple-vulnerabilities
web
pypi.org /project/pydio
package
github.com /advisories/GHSA-5ghg-233h-7j79
advisory

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.