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Medium

Tautulli: Reflected XSS in `/search` endpoint

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-45381
Confirmed fixed CVEs
Not specified
Updated in this feed
8 Nov 2026, 03:26 UTC · Revision 1

Source evidence

Tautulli: Reflected XSS in `/search` endpoint

core-osv · Original source

Published 21 Sept 2026, 19:14 UTC

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.

osv:CVE-2026-45381
Complete source record
{
  "id": "0ff3c72faf8049c2b71756c9b052164946c866461f0b5fa784925d319cae5767",
  "url": "https://osv.dev/vulnerability/CVE-2026-45381",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Tautulli: Reflected XSS in `/search` endpoint",
    "summary": "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.",
    "evidence": "osv:CVE-2026-45381",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-45381",
      "aliases": [
        "CVE-2026-45381",
        "GHSA-mjvc-6cc2-6ffr"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tautulli/tautulli",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c7153deb6e3017b8dda46c8448fe548a61c5a47a"
                },
                {
                  "fixed": "3bee54087370fc275b13565a9e58235341bb4cf7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.17.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3bee54087370fc275b13565a9e58235341bb4cf7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c7153deb6e3017b8dda46c8448fe548a61c5a47a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.17.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.17.1",
            "v2.17.0",
            "v2.16.1",
            "v2.16.0",
            "v2.15.3",
            "v2.15.2",
            "v2.15.1",
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            "v2.12.0-beta",
            "v2.11.1",
            "v2.11.0",
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            "v2.10.3",
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            "v2.9.6",
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            "v2.6.10",
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            "v2.6.7",
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            "v2.1.14",
            "v2.1.13",
            "v2.1.12",
            "v2.1.11-beta",
            "v2.1.10-beta",
            "v2.1.9",
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            "v2.0.20-beta",
            "v2.0.19-beta",
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            "v2.0.17-beta",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45381.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.159257776Z",
      "provider": "osv",
      "references": [
        "https://github.com/Tautulli/Tautulli/releases/tag/v2.17.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45381.json",
        "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-mjvc-6cc2-6ffr",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-45381",
        "https://github.com/Tautulli/Tautulli/commit/3bee54087370fc275b13565a9e58235341bb4cf7"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45381.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-45381",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 522197,
  "published_at": "2026-09-21T19:14:51.584+00:00"
}