CVE-2021-24889
CVE-2021-24889 is a high-severity vulnerability in Ninjaforms Ninja Forms with a CVSS 3.x base score of 7.2. 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-89.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-89
- Affected product: Ninjaforms Ninja Forms
- Published:
- Last modified:
Description
The Ninja Forms Contact Form WordPress plugin before 3.6.4 does not escape keys of the fields POST parameter, which could allow high privilege users to perform SQL injections attacks
Frequently asked questions
- What is CVE-2021-24889?
- The Ninja Forms Contact Form WordPress plugin before 3.6.4 does not escape keys of the fields POST parameter, which could allow high privilege users to perform SQL injections attacks
- How severe is CVE-2021-24889?
- CVE-2021-24889 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-24889 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-24889?
- CVE-2021-24889 affects Ninjaforms Ninja Forms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-24889?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-24889 published?
- CVE-2021-24889 was published on 2021-11-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
More vulnerabilities in Ninjaforms Ninja Forms
- CVE-2025-9083 — Critical (CVSS 9.8): The Ninja Forms WordPress plugin before 3.11.1 unserializes user input via form field, which could allow…
- CVE-2016-1209 — Critical (CVSS 9.8): The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks…
- CVE-2018-20981 — Critical (CVSS 9.1): The ninja-forms plugin before 3.3.9 for WordPress has insufficient restrictions on submission-data retrieval during…
- CVE-2024-25572 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability exists in Ninja Forms prior to 3.4.31. If a website administrator views…
- CVE-2021-24163 — High (CVSS 8.8): The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it…
- CVE-2018-16308 — High (CVSS 8.6): The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection.
All CVEs affecting Ninjaforms Ninja Forms →
Other CWE-89 (SQL Injection) vulnerabilities
- CVE-2026-54350 — Critical (CVSS 10.0): Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase…
- CVE-2026-8054 — Critical (CVSS 10.0): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints…
- CVE-2026-42287 — Critical (CVSS 10.0): Emlog is an open source website building system. Prior to version 2.6.11, direct SQL injection in article creation and…
- CVE-2026-3325 — Critical (CVSS 10.0): SQL injection (SQLi) in MegaCMS v12.0.0, specifically in the “id_territorio” parameter of the…
- CVE-2025-10878 — Critical (CVSS 10.0): A SQL injection vulnerability exists in the login functionality of Fikir Odalari AdminPando 1.0.1 before 2026-01-26.…
- CVE-2025-57792 — Critical (CVSS 10.0): Explorance Blue versions prior to 8.14.9 contain a SQL injection vulnerability caused by insufficient validation of…