HOMEVULNERABILITIESCVE-2023-51490
HIGH

CVE-2023-51490

CWE-532Published: January 8, 2024· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0.

NVD Source

Technical Analysis

CVE-2023-51490 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

wpmudev1 product(s)
defender security
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

ADVISORYhttps://patchstack.com/database/vulnerability/defender-security/wordpress-defender-security-plugin-4-1-0-sensitive-data-exposure-via-log-file-vulnerability?_s_id=cve
ADVISORYhttps://patchstack.com/database/vulnerability/defender-security/wordpress-defender-security-plugin-4-1-0-sensitive-data-exposure-via-log-file-vulnerability?_s_id=cve

All References (2)

→
https://patchstack.com/database/vulnerability/defender-security/wordpress-defender-security-plugin-4-1-0-sensitive-data-exposure-via-log-file-vulnerability?_s_id=cveThird Party Advisory
→
https://patchstack.com/database/vulnerability/defender-security/wordpress-defender-security-plugin-4-1-0-sensitive-data-exposure-via-log-file-vulnerability?_s_id=cveThird Party Advisory

Quick Facts

CVE IDCVE-2023-51490
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-532
CISA KEVNo
Affected1 vendor(s)
PublishedJan 8, 2024

Related CVEs (CWE-532)

CVE-2026-49200
10.0
CVE-2022-36407
9.9
CVE-2021-32724
9.9
CVE-2017-9615
9.8
CVE-2019-17397
9.8
CVE-2019-17395
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-51490 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.COM. CVE data is provided under the NVD usage policy.
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