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CVE-2023-0831

16
FAUCET Score

CVE-2023-0831 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the Under Construction plugin for WordPress, versions up to and including 3.96. This flaw stems from inadequate nonce validation within the dismiss_notice function. An unauthenticated attacker could exploit this by tricking a site administrator into clicking a malicious link, leading to the dismissal of plugin notifications. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and resulting in low impact to integrity (dismissing notifications). There is no impact on confidentiality or availability. Currently, there is no evidence of active exploitation, nor are there publicly available exploit codes in Metasploit, Nuclei, or ExploitDB. The vulnerability has received minimal community discussion and media coverage, suggesting low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.96CPE matchmatch criteria
cpe:2.3:a:webfactoryltd:under_construction:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 17th percentile among its peer group of 26,219 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/under-construction-page/trunk/under-construction.php
Patch
wordfence.com / threat-intel/vulnerabilities/id/031a1203-6b0d-453b-be8a-12e7f55cb401
Third Party Advisory