Tautulli
CVE-2019-8939
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
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. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Tautulli.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
Path traversal in Tautulli's /newsletter/image/images API endpoint allows unauthenticated remote attackers to read arbit
Unauthenticated path traversal in Tautulli 2.15.3 and earlier allows remote attackers to read arbitrary files from the s
Path traversal in Tautulli 2.15.3 and earlier allows unauthenticated remote attackers to read arbitrary files through th
Remote code execution in Tautulli through 2.15.3 requires pre-existing administrative access: an attacker who can repoin
Command injection in Tautulli 2.15.3 and earlier lets an authenticated administrator achieve remote code execution on th
In Tautulli 2.1.9, CSRF in the /shutdown URI allows an attacker to shut down the remote media server. Rated medium sever
Unauthenticated server-side request forgery in Tautulli versions prior to 2.17.1 allows remote attackers to coerce the T
Remote code execution in Tautulli versions prior to 2.17.1 allows attackers to achieve unauthenticated RCE on fresh inst
Stored cross-site scripting in Tautulli before 2.17.1 allows low-privilege authenticated users (including guests when gu
Cross-site request forgery in Tautulli versions prior to 2.17.1 allows remote attackers to hijack administrator accounts
Remote code execution in Tautulli (Python-based Plex Media Server monitoring tool) versions prior to 2.17.0 allows authe
Cross-site scripting (XSS) in Tautulli 1.3.10 through 2.16.x allows remote attackers to inject malicious scripts via uns
Exploit-DB