{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.9.6"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3"
            },
            {
              "fixed": "02826761b0e7b94d40f23f1511dcfcd563aa6ee6"
            }
          ],
          "repo": "https://github.com/ellite/wallos",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3vg2-cxpg-m43g"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61639.json"
  },
  "details": "Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to webroot. Extension filter only applies to post-extraction logo copy step. This issue has been patched in version 4.9.6.",
  "id": "CVE-2026-61639",
  "modified": "2026-09-02T03:30:54.165871086Z",
  "published": "2026-08-31T20:44:05.909Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ellite/Wallos/releases/tag/v4.9.6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61639.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/ellite/Wallos/security/advisories/GHSA-3vg2-cxpg-m43g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61639"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ellite/Wallos/commit/b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ellite/Wallos/pull/1092"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Wallos: Zip Slip path traversal in database restore writes files to webroot"
}