CVE-2026-18856 (GCVE-0-2026-18856)

Vulnerability from cvelistv5 – Published: 2026-08-05 00:30 – Updated: 2026-08-05 16:19
VLAI
Title
Poesis Rhymix CMS Data Import importer.admin.controller.php procImporterAdminCheckXmlFile server-side request forgery
Summary
A vulnerability was determined in Poesis Rhymix CMS up to 2.1.33. This impacts the function procImporterAdminCheckXmlFile of the file modules/importer/importer.admin.controller.php of the component Data Import Module. This manipulation of the argument filename causes server-side request forgery. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.34 will fix this issue. It is recommended to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 16:19 UTC
CWE
  • CWE-918 - Server-Side Request Forgery
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3761 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Poesis Rhymix CMS Affected: 2.1.0
Affected: 2.1.1
Affected: 2.1.2
Affected: 2.1.3
Affected: 2.1.4
Affected: 2.1.5
Affected: 2.1.6
Affected: 2.1.7
Affected: 2.1.8
Affected: 2.1.9
Affected: 2.1.10
Affected: 2.1.11
Affected: 2.1.12
Affected: 2.1.13
Affected: 2.1.14
Affected: 2.1.15
Affected: 2.1.16
Affected: 2.1.17
Affected: 2.1.18
Affected: 2.1.19
Affected: 2.1.20
Affected: 2.1.21
Affected: 2.1.22
Affected: 2.1.23
Affected: 2.1.24
Affected: 2.1.25
Affected: 2.1.26
Affected: 2.1.27
Affected: 2.1.28
Affected: 2.1.29
Affected: 2.1.30
Affected: 2.1.31
Affected: 2.1.32
Affected: 2.1.33
Unaffected: 2.1.34
    cpe:2.3:a:poesis:rhymix_cms:*:*:*:*:*:*:*:*
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                  "version": "2.1.2"
                },
                {
                  "status": "affected",
                  "version": "2.1.3"
                },
                {
                  "status": "affected",
                  "version": "2.1.4"
                },
                {
                  "status": "affected",
                  "version": "2.1.5"
                },
                {
                  "status": "affected",
                  "version": "2.1.6"
                },
                {
                  "status": "affected",
                  "version": "2.1.7"
                },
                {
                  "status": "affected",
                  "version": "2.1.8"
                },
                {
                  "status": "affected",
                  "version": "2.1.9"
                },
                {
                  "status": "affected",
                  "version": "2.1.10"
                },
                {
                  "status": "affected",
                  "version": "2.1.11"
                },
                {
                  "status": "affected",
                  "version": "2.1.12"
                },
                {
                  "status": "affected",
                  "version": "2.1.13"
                },
                {
                  "status": "affected",
                  "version": "2.1.14"
                },
                {
                  "status": "affected",
                  "version": "2.1.15"
                },
                {
                  "status": "affected",
                  "version": "2.1.16"
                },
                {
                  "status": "affected",
                  "version": "2.1.17"
                },
                {
                  "status": "affected",
                  "version": "2.1.18"
                },
                {
                  "status": "affected",
                  "version": "2.1.19"
                },
                {
                  "status": "affected",
                  "version": "2.1.20"
                },
                {
                  "status": "affected",
                  "version": "2.1.21"
                },
                {
                  "status": "affected",
                  "version": "2.1.22"
                },
                {
                  "status": "affected",
                  "version": "2.1.23"
                },
                {
                  "status": "affected",
                  "version": "2.1.24"
                },
                {
                  "status": "affected",
                  "version": "2.1.25"
                },
                {
                  "status": "affected",
                  "version": "2.1.26"
                },
                {
                  "status": "affected",
                  "version": "2.1.27"
                },
                {
                  "status": "affected",
                  "version": "2.1.28"
                },
                {
                  "status": "affected",
                  "version": "2.1.29"
                },
                {
                  "status": "affected",
                  "version": "2.1.30"
                },
                {
                  "status": "affected",
                  "version": "2.1.31"
                },
                {
                  "status": "affected",
                  "version": "2.1.32"
                },
                {
                  "status": "affected",
                  "version": "2.1.33"
                },
                {
                  "status": "unaffected",
                  "version": "2.1.34"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability was determined in Poesis Rhymix CMS up to 2.1.33. This impacts the function procImporterAdminCheckXmlFile of the file modules/importer/importer.admin.controller.php of the component Data Import Module. This manipulation of the argument filename causes server-side request forgery. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.34 will fix this issue. It is recommended to upgrade the affected component."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 5.1,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 5.8,
                "vectorString": "AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-918",
                  "description": "Server-Side Request Forgery",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T00:30:12.143Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-385868 | Poesis Rhymix CMS Data Import importer.admin.controller.php procImporterAdminCheckXmlFile server-side request forgery",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/vuln/385868"
            },
            {
              "name": "VDB-385868 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/385868/cti"
            },
            {
              "name": "CVE-2026-18856 | CVE Analysis and Report",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/cve/CVE-2026-18856"
            },
            {
              "name": "Submit #858471 | Poesis Inc. Rhymix CMS \u003c=2.1.33 Server-Side Request Forgery",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/858471"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://github.com/MCzhao2006/Rhymix-SSRF-Report"
            },
            {
              "tags": [
                "related"
              ],
              "url": "https://rhymix.org/news/1948042"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://rhymix.org/files/attach/releases/rhymix-2.1.34.zip"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-08-04T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-08-04T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-08-04T18:04:30.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Poesis Rhymix CMS Data Import importer.admin.controller.php procImporterAdminCheckXmlFile server-side request forgery",
          "x_generator": [
            "VulDB PVTS v202608"
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-18856",
        "datePublished": "2026-08-05T00:30:12.143Z",
        "dateReserved": "2026-08-04T15:58:58.811Z",
        "dateUpdated": "2026-08-05T16:19:40.785Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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