How severe is CVE-2021-39402?

CVE-2021-39402 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-2021-39402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39402?

CVE-2021-39402 affects Maianmedia Maianaffiliate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39402?

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-2021-39402 published?

CVE-2021-39402 was published on 2021-09-20 and last updated on 2026-06-17.

CVE-2021-39402

CVE-2021-39402 is a high-severity vulnerability in Maianmedia Maianaffiliate 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-94.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Maianmedia Maianaffiliate
Published: 2021-09-20
Last modified: 2026-06-17

Description

MaianAffiliate v.1.0 is suffers from code injection by adding a new product via the admin panel. The injected payload is reflected on the affiliate main page for all authenticated and unauthenticated visitors.

Frequently asked questions

What is CVE-2021-39402?: MaianAffiliate v.1.0 is suffers from code injection by adding a new product via the admin panel. The injected payload is reflected on the affiliate main page for all authenticated and unauthenticated visitors.
How severe is CVE-2021-39402?: CVE-2021-39402 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-2021-39402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39402?: CVE-2021-39402 affects Maianmedia Maianaffiliate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39402?: 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-2021-39402 published?: CVE-2021-39402 was published on 2021-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:maianmedia:maianaffiliate:1.0:*:*:*:*:*:*:*

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CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
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