What’s Vulnerable › Vulnerabilities

CVE-2026-47266: Formie: Unauthenticated front-end submission editing can overwrite existing submissions

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-29 · updated 2026-07-22
• Weakness: CWE-639

Description

Formie is a Craft CMS plugin for creating forms. Prior to 2.2.21 and 3.1.26, unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission. This vulnerability is fixed in 2.2.21 and 3.1.26.

Affected products

• verbb formie: before 2.2.21; from 3.0.0-beta.1, < 3.1.26

References

• https://github.com/verbb/formie/releases/tag/2.2.21
• https://github.com/verbb/formie/releases/tag/3.1.26
• https://github.com/verbb/formie/security/advisories/GHSA-pgxq-p76c-x9cg

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