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CVE-2023-6506

WP 2FA <= 2.5.0 - Insecure Direct Object Reference to Arbitrary Email Sending

MEDIUM
4.3
CVSS Score
Published: January 11, 2024 at 06:49 AM UTC
Updated: June 17, 2026 at 06:50 AM UTC
2 products affected across 2 vendorsWp 2FAWP 2FA

Using WP 2FA – Two-factor authentication for WordPress by melapress?

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Wp 2FA· Wpwhitesecuritywordpress-plugin
95%
v ≤ 2.5.0
WP 2FA· Melapresswordpress-plugin
60%
v ≤ 2.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Third Party Advisory
Source: [email protected]
https://plugins.trac.wordpress.org/browser/wp-2fa/trunk/includes/classes/Admin/class-setup-wizard.php?rev=2940688#L606
Patch
Source: [email protected]
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009922%40wp-2fa&new=3009922%40wp-2fa&sfp_email=&sfph_mail=
ProductThird Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/caff9be6-4161-47a0-ba47-6c8fc0c4ab40?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732CWE-639

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