HOMEVULNERABILITIESCVE-2023-6506
MEDIUM

CVE-2023-6506

CWE-639Published: January 11, 2024· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2023-6506 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

wpwhitesecurity1 product(s)
wp 2fa
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (6)

→
https://plugins.trac.wordpress.org/browser/wp-2fa/trunk/includes/classes/Admin/class-setup-wizard.php?rev=2940688#L606Third Party Advisory
→
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009922%40wp-2fa&new=3009922%40wp-2fa&sfp_email=&sfph_mail=Patch
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/caff9be6-4161-47a0-ba47-6c8fc0c4ab40?source=cveProduct · Third Party Advisory
→
https://plugins.trac.wordpress.org/browser/wp-2fa/trunk/includes/classes/Admin/class-setup-wizard.php?rev=2940688#L606Third Party Advisory
→
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009922%40wp-2fa&new=3009922%40wp-2fa&sfp_email=&sfph_mail=Patch
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/caff9be6-4161-47a0-ba47-6c8fc0c4ab40?source=cveProduct · Third Party Advisory

Quick Facts

CVE IDCVE-2023-6506
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-639
CISA KEVNo
Affected1 vendor(s)
PublishedJan 11, 2024

Related CVEs (CWE-639)

CVE-2025-40805
10.0
CVE-2024-45032
10.0
CVE-2026-34037
9.9
CVE-2026-29200
9.9
CVE-2026-45552
9.9
CVE-2025-0987
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-6506 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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