Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder vulnerabilities
Plugin slug formidable · 29 known vulnerabilities · latest disclosed 2026-10-29 · WordPress.org page
Every listed vulnerability has a fix. Version 7.0 or later is not affected by any of them. If your site runs an older version, update it.
12 of 29 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| High 8.8 | <= 6.35 | 7.0 | CVE-2026-89435 | 2026-10-29 | Advisory |
| High 7.5 | < 7.0 | 7.0 | CVE-2026-85642 | 2026-10-21 | Advisory |
| Medium 5.3 | <= 6.34 | 6.35 | CVE-2026-85641 | 2026-09-14 | Advisory |
| Medium 6.5 | <= 6.34 | 6.35 | CVE-2026-19857 | 2026-09-14 | Advisory |
| High 7.2 | <= 6.33.1 | 6.34 | CVE-2026-18331 | 2026-08-25 | Advisory |
| Medium 5.3 | <= 6.32.0 | 6.32.1 | CVE-2026-11361 | 2026-06-25 | Advisory |
| Medium 5.3 | <= 6.28 | 6.29 | CVE-2026-2888 | 2026-03-12 | Advisory |
| High 7.5 | <= 6.28 | 6.29 | CVE-2026-2890 | 2026-03-12 | Advisory |
| Medium 6.1 | <= 6.16.1.2 | 6.16.2 | CVE-2024-11188 | 2024-11-22 | Advisory |
| Medium 4.4 | <= 6.14 | 6.14.1 | CVE-2024-9768 | 2024-10-31 | Advisory |
| Medium 4.9 | <= 6.11.1 | 6.11.2 | CVE-2024-6725 | 2024-07-30 | Advisory |
| Medium 6.1 | <= 6.7.2 | 6.8 | CVE-2024-0660 | 2024-01-26 | Advisory |
| Medium 4.4 | <= 6.7 | 6.7.1 | CVE-2023-6842 | 2024-01-08 | Advisory |
| Medium 6.5 | <= 6.7 | 6.7.1 | CVE-2023-6830 | 2024-01-08 | Advisory |
| Medium 6.5 | < 6.3.1 | 6.3.1 | CVE-2023-2877 | 2023-05-31 | Advisory |
| Critical 9.8 | <= 6.1.2 | 6.2 | CVE-2023-1405 | 2023-04-06 | Advisory |
| Medium 5.3 | <= 6.0.1 | 6.1 | CVE-2023-0816 | 2023-03-06 | Advisory |
| High 7.1 | <= 5.5.6 | 5.5.7 | CVE-2023-24419 | 2023-02-01 | Advisory |
| Medium 5.4 | <= 5.5.4 | 5.5.5 | CVE-2022-45806 | 2022-12-16 | Advisory |
| Medium 4.7 | <= 5.5.4 | 5.5.5 | none | 2022-12-16 | Advisory |
| Medium 4.8 | < 5.0.07 | 5.0.07 | CVE-2021-24608 | 2021-10-06 | Advisory |
| Critical 9.6 | < 4.09.05 | 4.09.05 | CVE-2021-24884 | 2021-01-28 | Advisory |
| Critical 9.8 | < 4.02.01 | 4.02.01 | CVE-2019-15780 | 2019-08-09 | Advisory |
| High 8.6 | < 2.05.03 | 2.05.03 | none | 2017-11-13 | Advisory |
| High 8.3 | < 2.05.03 | 2.05.03 | CVE-2017-20192 | 2017-11-13 | Advisory |
| Medium 6.1 | < 2.05.03 | 2.05.03 | none | 2017-11-13 | Advisory |
| Medium 5.3 | < 2.05.03 | 2.05.03 | CVE-2017-20194 | 2017-11-12 | Advisory |
| Critical 9.1 | <= 2.0.21 | 2.0.22 | none | 2016-02-16 | Advisory |
| High 8.8 | <= 1.07.11 | 2.0 | CVE-2014-9309 | 2016-01-26 | Advisory |
Check if a site is affected
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Questions
Is the Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin safe to use?
All 29 known issues are fixed in current versions (7.0 or later). Keeping it updated is what matters.
How do I check which version of Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.