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High

YesWiki before 4.7.0 CSRF via despam Admin Action

Type: advisorySources: OSV

YesWiki before 4.7.0 contains a cross-site request forgery vulnerability in the despam action (tools/security/actions/despam.php) that lets unauthenticated attackers delete or restore pages through an administrator's session. Attackers can plant an auto-submitting raw HTML form on a wiki page, so an administrator who views it posts clean, suppr[], or rev[] parameters that delete PagePrincipale, configuration pages, or overwrite current content.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-116204
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 18:37 UTC · Revision 1

Source evidence

YesWiki before 4.7.0 CSRF via despam Admin Action

core-osv · Original source

Published 25 Oct 2026, 13:20 UTC

YesWiki before 4.7.0 contains a cross-site request forgery vulnerability in the despam action (tools/security/actions/despam.php) that lets unauthenticated attackers delete or restore pages through an administrator's session. Attackers can plant an auto-submitting raw HTML form on a wiki page, so an administrator who views it posts clean, suppr[], or rev[] parameters that delete PagePrincipale, configuration pages, or overwrite current content.

osv:CVE-2026-116204
Complete source record
{
  "id": "aa53a7b6de6ad5d03e225d80274ef5770b3e20eba1d0b46e2b7b4bc2999eed7d",
  "url": "https://osv.dev/vulnerability/CVE-2026-116204",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "YesWiki before 4.7.0 CSRF via despam Admin Action",
    "summary": "YesWiki before 4.7.0 contains a cross-site request forgery vulnerability in the despam action (tools/security/actions/despam.php) that lets unauthenticated attackers delete or restore pages through an administrator's session. Attackers can plant an auto-submitting raw HTML form on a wiki page, so an administrator who views it posts clean, suppr[], or rev[] parameters that delete PagePrincipale, configuration pages, or overwrite current content.",
    "evidence": "osv:CVE-2026-116204",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-116204",
      "aliases": [
        "CVE-2026-116204",
        "GHSA-cv88-hx5q-vq72"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yeswiki/yeswiki",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bba4abccdf68476dde3d7119019139121849fb32"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.7.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.7.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.6.9",
            "v4.6.8",
            "v4.6.7",
            "v4.6.6",
            "v4.6.5",
            "v4.6.4",
            "v4.6.3",
            "v4.6.2",
            "v4.6.0",
            "v4.5.5",
            "v4.5.4",
            "v4.5.3",
            "v4.5.2",
            "v4.5.1",
            "v4.4.3",
            "v4.4.2",
            "v4.4.1",
            "v4.4.0",
            "v4.3.1",
            "v4.3.0",
            "v4.2.2",
            "v4.2.1",
            "v4.2.0",
            "v4.1.5",
            "v4.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-116204.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.165264134Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116204.json",
        "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-cv88-hx5q-vq72",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-116204",
        "https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-csrf-via-despam-admin-action"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-352"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116204.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-116204",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505764,
  "published_at": "2026-10-25T13:20:35.206+00:00"
}