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CVE-2018-20231

27
FAUCET Score

CVE-2018-20231 describes a Cross-Site Request Forgery (CSRF) vulnerability in the simbahosting two-factor-authentication plugin for WordPress, affecting versions prior to 1.3.13. This flaw allows remote attackers to disable a user's two-factor authentication by exploiting a missing nonce validation for the tfa_enable_tfa parameter. The vulnerability carries a CVSS v3.0 score of 8.8 (High), indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.13CPE matchmatch criteria
cpe:2.3:a:simbahosting:two-factor-authentication:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 69th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wordpress.org / plugins/two-factor-authentication
Third Party Advisory
wpvulndb.com / vulnerabilities/9187
Third Party Advisory
privacy-wise.com / two-factor-authentication-cross-site-request-forgery-csrf-vulnerability-cve-2018-20231
ExploitThird Party Advisory