How severe is CVE-2021-24148?

CVE-2021-24148 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-24148 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24148?

CVE-2021-24148 affects Inspireui Mstore Api. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24148?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-24148 published?

CVE-2021-24148 was published on 2021-03-18 and last updated on 2026-06-17.

CVE-2021-24148

CVE-2021-24148 is a critical-severity vulnerability in Inspireui Mstore Api with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Inspireui Mstore Api
Published: 2021-03-18
Last modified: 2026-06-17

Description

A business logic issue in the MStore API WordPress plugin, versions before 3.2.0, had an authentication bypass with Sign In With Apple allowing unauthenticated users to recover an authentication cookie with only an email address.

Frequently asked questions

What is CVE-2021-24148?: A business logic issue in the MStore API WordPress plugin, versions before 3.2.0, had an authentication bypass with Sign In With Apple allowing unauthenticated users to recover an authentication cookie with only an email address.
How severe is CVE-2021-24148?: CVE-2021-24148 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-24148 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24148?: CVE-2021-24148 affects Inspireui Mstore Api. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24148?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-24148 published?: CVE-2021-24148 was published on 2021-03-18 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/bf5ddc43-974d-41fa-8276-c1a27d3cc882

Affected products (1)

cpe:2.3:a:inspireui:mstore_api:*:*:*:*:*:wordpress:*:*

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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 →