GHSA-PGXQ-P76C-X9CG

Vulnerability from github – Published: 2026-05-29 22:19 – Updated: 2026-05-29 22:19
VLAI
Summary
formie's unauthenticated front-end submission editing can overwrite existing submissions
Details

Impact

Unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission.

Patches

2.2.21, 3.1.26

Workarounds

Block unauthenticated access to actions/formie/submissions/save-submission, or disable/customize front-end submission editing until patched.

Credit

formie extends many thanks to: - Florian (Cyber Security Engineer, arcade solutions ag) - Contact: security@arcade.ch

Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "verbb/formie"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.26"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "verbb/formie"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-47266"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-29T22:19:19Z",
    "nvd_published_at": "2026-05-29T20:16:28Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nUnauthenticated users could modify existing submissions by posting a known or guessed submission ID to `formie/submissions/save-submission`.\n\n### Patches\n[2.2.21](https://github.com/verbb/formie/releases/tag/2.2.21), [3.1.26](https://github.com/verbb/formie/releases/tag/3.1.26)\n\n### Workarounds\nBlock unauthenticated access to `actions/formie/submissions/save-submission`, or disable/customize front-end submission editing until patched.\n\n### Credit\nformie extends many thanks to:\n- Florian (Cyber Security Engineer, arcade solutions ag)\n- Contact: [security@arcade.ch](mailto:security@arcade.ch)",
  "id": "GHSA-pgxq-p76c-x9cg",
  "modified": "2026-05-29T22:19:19Z",
  "published": "2026-05-29T22:19:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47266"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/verbb/formie"
    },
    {
      "type": "WEB",
      "url": "https://github.com/verbb/formie/releases/tag/2.2.21"
    },
    {
      "type": "WEB",
      "url": "https://github.com/verbb/formie/releases/tag/3.1.26"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "formie\u0027s unauthenticated front-end submission editing can overwrite existing submissions"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.