What’s Vulnerable › Vulnerabilities

CVE-2026-45381: Tautulli: Reflected XSS in `/search` endpoint

• Severity: medium (CVSS 5.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-21 · updated 2026-09-29
• Weakness: CWE-79

Description

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to 2.17.2, the /search endpoint inserts its user-controlled query parameter into a JavaScript string in data/interfaces/default/search.html using manual escaping that handles quotes and slashes but not backslashes. A backslash-quote sequence can terminate the string, so an unauthenticated attacker can send a crafted link that executes script in the Tautulli web context when an authenticated user follows it. This issue is fixed in version 2.17.2.

Affected products

• Tautulli: before 2.17.2

References

• https://github.com/Tautulli/Tautulli/commit/3bee54087370fc275b13565a9e58235341bb4cf7
• https://github.com/Tautulli/Tautulli/releases/tag/v2.17.2
• https://github.com/Tautulli/Tautulli/security/advisories/GHSA-mjvc-6cc2-6ffr
• https://github.com/Tautulli/Tautulli/security/advisories/GHSA-mjvc-6cc2-6ffr

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