Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder vulnerabilities
Plugin slug fluentform · 47 known vulnerabilities · latest disclosed 2026-11-06 · WordPress.org page
Every listed vulnerability has a fix. Version 6.2.17 or later is not affected by any of them. If your site runs an older version, update it.
11 of 47 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.3 | <= 6.2.16 | 6.2.17 | CVE-2026-120858 | 2026-11-06 | Advisory |
| Medium 5.3 | <= 6.2.15 | 6.2.16 | CVE-2026-111831 | 2026-10-19 | Advisory |
| Medium 5.4 | <= 6.2.5 | 6.2.6 | CVE-2026-15178 | 2026-10-09 | Advisory |
| Medium 4.7 | <= 6.2.14 | 6.2.15 | CVE-2026-101324 | 2026-10-09 | Advisory |
| Medium 6.4 | <= 6.2.14 | 6.2.15 | CVE-2026-103343 | 2026-10-01 | Advisory |
| Medium 5.3 | <= 6.2.14 | 6.2.15 | CVE-2026-103353 | 2026-10-01 | Advisory |
| High 7.2 | <= 6.2.11 | 6.2.12 | CVE-2026-18146 | 2026-08-12 | Advisory |
| Medium 4.3 | <= 6.2.4 | 6.2.5 | CVE-2026-11578 | 2026-08-11 | Advisory |
| Medium 4.3 | <= 6.2.0 | 6.2.1 | CVE-2026-11880 | 2026-08-10 | Advisory |
| Medium 6.1 | <= 6.2.8 | 6.2.9 | CVE-2026-17571 | 2026-07-31 | Advisory |
| Medium 5.3 | <= 6.2.8 | 6.2.9 | CVE-2026-17567 | 2026-07-30 | Advisory |
| Medium 6.4 | < 6.2.6 | 6.2.6 | CVE-2026-11881 | 2026-07-30 | Advisory |
| High 7.2 | <= 6.2.7 | 6.2.8 | CVE-2026-16655 | 2026-07-28 | Advisory |
| Medium 5.4 | <= 6.2.1 | 6.2.2 | CVE-2026-5069 | 2026-07-09 | Advisory |
| High 8.2 | <= 6.2.0 | 6.2.1 | CVE-2026-5395 | 2026-05-13 | Advisory |
| High 8.2 | <= 6.1.21 | 6.2.0 | CVE-2026-5396 | 2026-05-13 | Advisory |
| Medium 6.4 | <= 6.2.1 | 6.2.2 | CVE-2026-6828 | 2026-05-12 | Advisory |
| Medium 4.9 | <= 6.2.1 | 6.2.2 | CVE-2026-6344 | 2026-05-05 | Advisory |
| Medium 5.3 | 6.1.21 | 6.2.0 | CVE-2026-4160 | 2026-04-16 | Advisory |
| Medium 6.4 | <= 6.1.14 | 6.1.15 | CVE-2026-0996 | 2026-02-09 | Advisory |
| Medium 4.3 | <= 6.1.14 | 6.1.15 | CVE-2026-25313 | 2026-01-25 | Advisory |
| Medium 6.5 | <= 6.1.11 | 6.1.12 | CVE-2025-69001 | 2026-01-13 | Advisory |
| Medium 5.3 | <= 6.1.7 | 6.1.8 | CVE-2025-13722 | 2026-01-06 | Advisory |
| Medium 5.3 | <= 6.1.7 | 6.1.8 | CVE-2025-13748 | 2025-12-05 | Advisory |
| Medium 6.5 | 5.1.16 to 6.1.1 | 6.1.2 | CVE-2025-9260 | 2025-09-02 | Advisory |
| Medium 6.4 | <= 6.0.2 | 6.0.3 | CVE-2025-3615 | 2025-04-16 | Advisory |
| Medium 5.3 | <= 5.2.12 | 6.0.0 | CVE-2024-13666 | 2025-03-21 | Advisory |
| High 7.2 | <= 5.2.6 | 5.2.7 | CVE-2024-10646 | 2024-12-13 | Advisory |
| Medium 4.4 | <= 5.2.0 | 5.2.1 | CVE-2024-9651 | 2024-11-18 | Advisory |
| Medium 4.9 | <= 5.1.19 | 5.1.20 | CVE-2024-9528 | 2024-10-04 | Advisory |
| Medium 4.2 | <= 5.1.18 | 5.1.19 | CVE-2024-5053 | 2024-08-31 | Advisory |
| Medium 4.4 | <= 5.1.19 | 5.1.20 | CVE-2024-6520 | 2024-07-26 | Advisory |
| Medium 4.4 | <= 5.1.19 | 5.1.20 | CVE-2024-6518 | 2024-07-26 | Advisory |
| Medium 4.4 | <= 5.1.19 | 5.1.20 | CVE-2024-6521 | 2024-07-26 | Advisory |
| Medium 4.9 | <= 5.1.19 | 5.1.20 | CVE-2024-6703 | 2024-07-26 | Advisory |
| High 7.5 | <= 5.1.15 | 5.1.16 | CVE-2024-4157 | 2024-05-21 | Advisory |
| Medium 6.4 | <= 5.1.13 | 5.1.14 | CVE-2024-2772 | 2024-05-17 | Advisory |
| High 7.5 | <= 5.1.16 | 5.1.17 | CVE-2024-2782 | 2024-05-17 | Advisory |
| Critical 9.8 | <= 5.1.16 | 5.1.17 | CVE-2024-2771 | 2024-05-17 | Advisory |
| Medium 6.4 | <= 5.1.16 | 5.1.17 | CVE-2024-4709 | 2024-05-17 | Advisory |
| Medium 4.9 | <= 5.1.9 | 5.1.10 | CVE-2023-6957 | 2024-03-05 | Advisory |
| Medium 4.4 | <= 5.1.5 | 5.1.7 | CVE-2024-0618 | 2024-01-18 | Advisory |
| Medium 5.3 | < 5.0.9 | 5.0.9 | CVE-2023-41952 | 2023-09-08 | Advisory |
| High 7.2 | <= 4.3.25 | 5.0.0 | CVE-2023-24410 | 2023-07-12 | Advisory |
| Medium 6.4 | <= 4.3.24 | 4.3.25 | CVE-2023-0546 | 2023-03-20 | Advisory |
| High 8.3 | <= 4.3.12 | 4.3.13 | CVE-2022-3463 | 2022-10-17 | Advisory |
| High 8.8 | < 3.6.67 | 3.6.67 | CVE-2021-34620 | 2021-06-16 | Advisory |
Check if a site is affected
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Questions
Is the Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin safe to use?
All 47 known issues are fixed in current versions (6.2.17 or later). Keeping it updated is what matters.
How do I check which version of Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational 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.