How severe is CVE-2023-6830?

CVE-2023-6830 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-6830 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6830?

CVE-2023-6830 affects Strategy11 Formidable Form Builder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6830?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-6830 have an EU (EUVD) identifier?

Yes. CVE-2023-6830 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59040.

When was CVE-2023-6830 published?

CVE-2023-6830 was published on 2024-01-09 and last updated on 2026-06-17.

CVE-2023-6830

CVE-2023-6830 is a medium-severity vulnerability in Strategy11 Formidable Form Builder with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59040
Weakness: CWE-79
Affected product: Strategy11 Formidable Form Builder
Published: 2024-01-09
Last modified: 2026-06-17

Description

The Formidable Forms plugin for WordPress is vulnerable to HTML injection in versions up to, and including, 6.7. This vulnerability allows unauthenticated users to inject arbitrary HTML code into form fields. When the form data is viewed by an administrator in the Entries View Page, the injected HTML code is rendered, potentially leading to admin area defacement or redirection to malicious websites. CVE-2024-23522 appears to be a duplicate of this issue.

Frequently asked questions

What is CVE-2023-6830?: The Formidable Forms plugin for WordPress is vulnerable to HTML injection in versions up to, and including, 6.7. This vulnerability allows unauthenticated users to inject arbitrary HTML code into form fields. When the form data is viewed by an administrator in the Entries View Page, the injected HTML code is rendered, potentially leading to admin area defacement or redirection to malicious websites. CVE-2024-23522 appears to be a duplicate of this issue.
How severe is CVE-2023-6830?: CVE-2023-6830 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-6830 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6830?: CVE-2023-6830 affects Strategy11 Formidable Form Builder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6830?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6830 have an EU (EUVD) identifier?: Yes. CVE-2023-6830 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59040.
When was CVE-2023-6830 published?: CVE-2023-6830 was published on 2024-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:strategy11:formidable_form_builder:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Strategy11 Formidable Form Builder

CVE-2019-15780 — Critical (CVSS 9.8): The formidable plugin before 4.02.01 for WordPress has unsafe deserialization.
CVE-2021-24884 — Critical (CVSS 9.6): The Formidable Form Builder WordPress plugin before 4.09.05 allows to inject certain HTML Tags like…
CVE-2017-20192 — High (CVSS 8.3): The Formidable Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters…
CVE-2023-24419 — High (CVSS 7.1): Cross-Site Request Forgery (CSRF) vulnerability in Strategy11 Form Builder Team Formidable Forms plugin <= 5.5.6…
CVE-2023-0816 — Medium (CVSS 6.5): The Formidable Forms WordPress plugin before 6.1 uses several potentially untrusted headers to determine the IP address…
CVE-2017-20194 — Medium (CVSS 5.3): The Formidable Form Builder plugin for WordPress is vulnerable to Sensitive Data Exposure in versions up to, and…

All CVEs affecting Strategy11 Formidable Form Builder →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →