PYSEC-2026-2053

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:25
VLAI
Details

Impact

Multi-translation download could write to an arbitrary location when instructed by a crafted server.

Patches

  • https://github.com/WeblateOrg/wlc/pull/1128

Workarounds

Do not use wlc download with untrusted servers.

References

This issue was reported to us by wh1zee via HackerOne.

Severity
8.0 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Impacted products
Name purl
wlc pkg:pypi/wlc
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "wlc",
        "purl": "pkg:pypi/wlc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.17.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0",
        "0.1",
        "0.10",
        "0.2",
        "0.3",
        "0.4",
        "0.5",
        "0.6",
        "0.7",
        "0.8",
        "0.9",
        "1.0",
        "1.1",
        "1.10",
        "1.11",
        "1.12",
        "1.13",
        "1.14",
        "1.15",
        "1.16.1",
        "1.17.0",
        "1.17.1",
        "1.2",
        "1.3",
        "1.4",
        "1.5",
        "1.6",
        "1.7",
        "1.8",
        "1.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-23535",
    "GHSA-mmwx-79f6-67jg"
  ],
  "details": "### Impact\nMulti-translation download could write to an arbitrary location when instructed by a crafted server.\n\n### Patches\n* https://github.com/WeblateOrg/wlc/pull/1128\n\n### Workarounds\nDo not use `wlc download` with untrusted servers.\n\n### References\nThis issue was reported to us by [wh1zee](https://hackerone.com/wh1zee) via HackerOne.",
  "id": "PYSEC-2026-2053",
  "modified": "2026-07-07T17:25:51.828388Z",
  "published": "2026-07-07T16:03:18.960085Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/wlc/security/advisories/GHSA-mmwx-79f6-67jg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23535"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/wlc/pull/1128"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/wlc/commit/216e691c6e50abae97fe2e4e4f21501bf49a585f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/WeblateOrg/wlc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WeblateOrg/wlc/releases/tag/1.17.2"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/wlc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mmwx-79f6-67jg"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Weblate wlc path traversal vulnerability: Unsanitized API slugs in download command "
}


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