CVE-2021-24998: The Simple JWT Login WordPress plugin before 3.3.0 can be used to create new WordPress user accounts with a ra

Q: How do I fix CVE-2021-24998?

simple jwt login: upgrade to 3.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-24998 being exploited?

CVE-2021-24998 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-24998 affect?

CVE-2021-24998 affects simple jwt login. Severity is high (CVSS 7.5). 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

Q: How urgent is CVE-2021-24998?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2021-24998 is a high-severity flaw (CVSS 7.5) affecting simple jwt login. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-330
Published	2021-12-27
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: simple jwt login project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-12-27 11:15 UTCPublished CVE record published
2026-06-17 03:41 UTCUpdated Record last modified

simple jwt login project simple jwt login UPGRADE

Affected: < 3.3.0

Fixed in: 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simple-jwt-login || rpm -q simple-jwt-login || simple-jwt-login --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade simple-jwt-login

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade simple-jwt-login

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-24998?

simple jwt login: upgrade to 3.3.0. Exact commands for each OS are on this page.

Is CVE-2021-24998 being exploited?

CVE-2021-24998 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-24998 affect?

CVE-2021-24998 affects simple jwt login. Severity is high (CVSS 7.5). 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

How urgent is CVE-2021-24998?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2021-24804 HIGH 8.8 UPGRADE The Simple JWT Login WordPress plugin before 3.2.1 does not have nonce checks when saving its settings, allowi

References

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