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CVE-2023-4423

17
FAUCET Score

CVE-2023-4423 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the WP Event Manager plugin for WordPress, versions up to and including 3.1.37.1. This flaw, stemming from insufficient input sanitization, allows authenticated administrators to inject malicious web scripts into pages. The vulnerability has a CVSS score of 4.8 (Medium), indicating a network attack vector with low complexity, requiring high privileges and user interaction, and resulting in low impact to confidentiality and integrity. While it only affects multi-site installations or those with unfiltered_html disabled, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.38CPE matchmatch criteria
cpe:2.3:a:wp-eventmanager:wp_event_manager:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 62nd percentile among its peer group of 4,931 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / Jacky-Y/vuls/blob/main/vul5.md
ExploitThird Party Advisory
github.com / wpeventmanager/wp-event-manager/issues/1483
ExploitIssue TrackingPatchVendor Advisory
plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/dd9d22b0-a84a-4bf2-b8b4-89bae2970f29
Third Party Advisory