CVE-2023-6506: The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Insecure Direct Obj

Q: How do I fix CVE-2023-6506?

wp 2fa: upgrade to newer than 2.5.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-6506 being exploited?

CVE-2023-6506 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-2023-6506 affect?

CVE-2023-6506 affects wp 2fa. Severity is medium (CVSS 4.3). The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.5.0 via the send_backup_codes_email due to missing validation on a user cont

Q: How urgent is CVE-2023-6506?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2023-6506 is a medium-severity flaw (CVSS 4.3) affecting wp 2fa. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.5.0 via the send_backup_codes_email due to missing validation on a user controlled key. This makes it possible for subscriber-level attackers to email arbitrary users on the site.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-639, CWE-732
Published	2024-01-11
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: wpwhitesecurity

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

Am I affected?

Timeline

2024-01-11 07:15 UTCPublished CVE record published
2026-06-17 06:50 UTCUpdated Record last modified

wpwhitesecurity wp 2fa UPGRADE

Affected: <= 2.5.0

Fixed in: newer than 2.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wp-2fa || rpm -q wp-2fa || wp-2fa --version

2. UPGRADE to newer than 2.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wp-2fa

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wp-2fa

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-2023-6506?

wp 2fa: upgrade to newer than 2.5.0. Exact commands for each OS are on this page.

Is CVE-2023-6506 being exploited?

CVE-2023-6506 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-2023-6506 affect?

CVE-2023-6506 affects wp 2fa. Severity is medium (CVSS 4.3). The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.5.0 via the send_backup_codes_email due to missing validation on a user cont

How urgent is CVE-2023-6506?

Priority 25/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

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References

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