How severe is CVE-2021-34675?

CVE-2021-34675 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-34675 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34675?

CVE-2021-34675 affects Basixonline Nex-forms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34675?

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-2021-34675 published?

CVE-2021-34675 was published on 2021-07-19 and last updated on 2026-06-17.

CVE-2021-34675

CVE-2021-34675 is a high-severity vulnerability in Basixonline Nex-forms with a CVSS 3.x base score of 7.5. 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Basixonline Nex-forms
Published: 2021-07-19
Last modified: 2026-06-17

Description

Basix NEX-Forms through 7.8.7 allows authentication bypass for stored PDF reports.

Frequently asked questions

What is CVE-2021-34675?: Basix NEX-Forms through 7.8.7 allows authentication bypass for stored PDF reports.
How severe is CVE-2021-34675?: CVE-2021-34675 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-34675 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34675?: CVE-2021-34675 affects Basixonline Nex-forms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34675?: 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-2021-34675 published?: CVE-2021-34675 was published on 2021-07-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:basixonline:nex-forms:*:*:*:*:*:*:*:*

More vulnerabilities in Basixonline Nex-forms

CVE-2015-9452 — Critical (CVSS 9.8): The nex-forms-express-wp-form-builder plugin before 4.6.1 for WordPress has SQL injection via the…
CVE-2022-3142 — High (CVSS 8.8): The NEX-Forms WordPress plugin before 7.9.7 does not properly sanitise and escape user input before using it in SQL…
CVE-2024-53808 — High (CVSS 8.5): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Basix NEX-Forms…
CVE-2023-50838 — High (CVSS 7.6): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Basix NEX-Forms…
CVE-2021-34676 — High (CVSS 7.5): Basix NEX-Forms through 7.8.7 allows authentication bypass for Excel report generation.
CVE-2023-2114 — High (CVSS 7.2): The NEX-Forms WordPress plugin before 8.4 does not properly escape the `table` parameter, which is populated with user…

All CVEs affecting Basixonline Nex-forms →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →