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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2025-12120

Lite XL versions 2.1.8 and prior automatically execute the .lite_project.lua file when opening a project directory, without prompting the user for confirmation. The .lite_project.lua file is intended for project-specific configuration but can contain executable Lua logic. This behavior could allow execution of untrusted Lua code if a user opens a malicious project, potentially leading to arbitrary code execution with the privileges of the Lite XL process.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-12120
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:24 UTC · Revision 1

Source evidence

CVE-2025-12120

core-osv · Original source

Published 20 Nov 2025, 16:38 UTC

Lite XL versions 2.1.8 and prior automatically execute the .lite_project.lua file when opening a project directory, without prompting the user for confirmation. The .lite_project.lua file is intended for project-specific configuration but can contain executable Lua logic. This behavior could allow execution of untrusted Lua code if a user opens a malicious project, potentially leading to arbitrary code execution with the privileges of the Lite XL process.

osv:CVE-2025-12120
Complete source record
{
  "id": "657a9d0f2840f345654ff2c9aa14093d3145ef27a18f16d7a3b4172071920871",
  "url": "https://osv.dev/vulnerability/CVE-2025-12120",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-12120",
    "summary": "Lite XL versions 2.1.8 and prior automatically execute the .lite_project.lua file when opening a project directory, without prompting the user for confirmation. The .lite_project.lua file is intended for project-specific configuration but can contain executable Lua logic. This behavior could allow execution of untrusted Lua code if a user opens a malicious project, potentially leading to arbitrary code execution with the privileges of the Lite XL process.",
    "evidence": "osv:CVE-2025-12120",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-12120",
      "aliases": [
        "CVE-2025-12120"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/lite-xl/lite-xl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0af4dae0e2748d6afe7bded41c13d96f627cb520"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.1.8"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "VersionTextExtraction"
                  },
                  {
                    "cpe": "cpe:2.3:a:lite-xl:lite_xl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.1.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.1.8",
            "v2.1.7",
            "v2.1.6",
            "v2.1.5",
            "v2.1.4",
            "v2.1.4-rc1",
            "v2.1.3",
            "v2.1.3-rc2",
            "v2.1.3-rc1",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v2.0-beta1",
            "v1.16.11",
            "v1.16.10",
            "v1.16.9-dev-1",
            "v1.16.9",
            "v1.16.8",
            "v1.16.7",
            "v1.16.6",
            "v1.16.5",
            "v1.16.4",
            "v1.16.3-lite-xl",
            "v1.16.2-lite-xl",
            "v1.16.1-lite-xl",
            "v1.16.0-lite-xl",
            "v1.15-lite-xl",
            "v1.14.1-lite-xl",
            "v1.14-lite-xl",
            "v1.13-lite-xl",
            "v1.12-lite-xl",
            "v1.11-lite-xl",
            "v1.10-lite-xl",
            "v1.08-subpixel",
            "1.06-subpixel-rc1",
            "v1.05",
            "v1.04",
            "v1.03",
            "v1.02",
            "v1.01",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12120.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.752529364Z",
      "provider": "osv",
      "references": [
        "https://kb.cert.org/vuls/id/579478",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12120.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-12120",
        "https://github.com/lite-xl/lite-xl/pull/2164"
      ],
      "provider_metadata": {
        "cna_assigner": "certcc",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12120.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-12120",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496798,
  "published_at": "2025-11-20T16:38:29.108+00:00"
}