How severe is CVE-2021-24998?

CVE-2021-24998 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 none, integrity high, and availability none.

Is CVE-2021-24998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24998?

CVE-2021-24998 affects Simple Jwt Login Project Simple Jwt Login. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24998?

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-2021-24998 published?

CVE-2021-24998 was published on 2021-12-27 and last updated on 2026-06-17.

CVE-2021-24998

CVE-2021-24998 is a high-severity vulnerability in Simple Jwt Login Project Simple Jwt Login 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-330.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Simple Jwt Login Project Simple Jwt Login
Published: 2021-12-27
Last modified: 2026-06-17

Description

The Simple JWT Login WordPress plugin before 3.3.0 can be used to create new WordPress user accounts with a randomly generated password. The password is generated using the str_shuffle PHP function that "does not generate cryptographically secure values, and should not be used for cryptographic purposes" according to PHP's documentation.

Frequently asked questions

What is CVE-2021-24998?: The Simple JWT Login WordPress plugin before 3.3.0 can be used to create new WordPress user accounts with a randomly generated password. The password is generated using the str_shuffle PHP function that "does not generate cryptographically secure values, and should not be used for cryptographic purposes" according to PHP's documentation.
How severe is CVE-2021-24998?: CVE-2021-24998 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 none, integrity high, and availability none.
Is CVE-2021-24998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24998?: CVE-2021-24998 affects Simple Jwt Login Project Simple Jwt Login. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24998?: 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-2021-24998 published?: CVE-2021-24998 was published on 2021-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:simple_jwt_login_project:simple_jwt_login:*:*:*:*:*:wordpress:*:*

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