data/interfaces/default/history.html in Tautulli 2.1.26 has XSS via a crafted Plex username that is mishandled when constructing the Histor…

published 2019-02-19 7y ago modified 2026-06-17 4mo ago also EUVD-2019-0167

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

data/interfaces/default/history.html in Tautulli 2.1.26 has XSS via a crafted Plex username that is mishandled when constructing the History page.

Patch / fix

links 1

github.com/Tautulli/Tautulli-Issues/issues/161 advisory

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Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/Tautulli/Tautulli-Issues/issues/161 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /Tautulli/Tautulli-Issues/issues/161
exploit, patch, third-party-advisory
securityfocus.com /bid/107171
vdb-entry, third-party-advisory

Sources

CVE List CVE-2019-8939
NVD CVE-2019-8939

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