What is the CVSS score of CVE-2023-5538?

CVE-2023-5538 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 11.2%.

Is there a public PoC exploit available for CVE-2023-5538?

Yes, a public proof-of-concept exploit is available for CVE-2023-5538. Prioritise patching immediately. EPSS: 11.2%.

Mpoperationlogs CVE-2023-5538

HIGH

Cross-site Scripting (XSS) (CWE-79)

2023-10-18 security@wordfence.com

XSS WordPress Mpoperationlogs

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

PoC Detected

Apr 08, 2026 - 19:18 vuln.today

Public exploit code

CVE Published

Oct 18, 2023 - 05:15 nvd

HIGH 7.2

DescriptionCVE.org

The MpOperationLogs plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the IP Request Headers in versions up to, and including, 1.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

The MpOperationLogs plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the IP Request Headers in versions up to, and including, 1.0.1 due to insufficient input sanitization and. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 11.2%.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The MpOperationLogs plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the IP Request Headers in versions up to, and including, 1.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected products include: Mrpeng Mpoperationlogs.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.