Security advisory

{
  "id": "9bb69a0cd97397506a999bcff02cc734c9d3ac2ce2e43a3dd0c2ffaa13fa9223",
  "url": "https://osv.dev/vulnerability/CVE-2021-27352",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-27352",
    "summary": "An open redirect vulnerability in Ilch CMS version 2.1.42 allows attackers to redirect users to an attacker's site after a successful login.",
    "evidence": "osv:CVE-2021-27352",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-27352",
      "aliases": [
        "CVE-2021-27352"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ilchcms/ilch-2.0",
              "type": "GIT",
              "events": [
                {
                  "introduced": "503052353febb9d2152eb0013a7b2324f8c9b2b0"
                },
                {
                  "last_affected": "503052353febb9d2152eb0013a7b2324f8c9b2b0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ilch:ilch_cms:2.1.42:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.1.42"
                      },
                      {
                        "last_affected": "2.1.42"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.1.42",
            "v2.1.42"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27352.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:54.890721379Z",
      "provider": "osv",
      "references": [
        "https://www.ilch.de/",
        "https://drive.google.com/file/d/1kSDlPASBCgJEINxTSIsjMWrU4u4T5XCc/view?usp=sharing",
        "https://github.com/xoffense/POC/blob/main/Ilch%202.1.42%20Open%20redirect"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-27352",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438302,
  "published_at": "2021-03-29T16:15:13.257+00:00"
}