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CVE-2023-5673· NVD / CVE Program· CNA WPScan

WP Mail Log < 1.1.3 – Contributor+ Arbitrary File Upload to RCE

The WP Mail Log WordPress plugin before 1.1.3 does not properly validate file extensions uploading files to attach to emails, allowing attackers to upload PHP files, leading to remote code execution.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Dec 26, 2023
Updated
Jun 17, 2026
EPSS
1.1% · 64th percentile
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JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.1%

Affected systems

VendorProduct
wpvibeswp mail log

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wpvibes wp mail logbefore 1.1.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WPScan). Independent of NVD's CPE analysis and usually ahead of it.

  • Unknown WP Mail Log

    • before 1.1.3affected · semver

Same product

wpvibes: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-5674WP Mail Log < 1.1.3 – Contributor+ SQL Injection in wml_logs/send_mail endpoint
    38Monitor
  • CVE-2023-51410WordPress WP Mail Log Plugin <= 1.1.2 is vulnerable to Arbitrary File Upload
    35Monitor
  • CVE-2023-5645WP Mail Log < 1.1.3 – Contributor+ SQL Injection in wml_logs endpoint
    35Monitor
  • CVE-2022-45807WordPress WP Mail Log Plugin <= 1.0.1 is vulnerable to Cross Site Request Forgery (CSRF)
    35Monitor
  • CVE-2023-5644WP Mail Log < 1.1.3 – Incorrect Authorization in REST API Endpoints
    30Monitor
  • CVE-2023-33999WordPress WP Mail Log plugin <= 1.0.2 - Reflected Cross Site Scripting (XSS) vulnerability
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Unknown WP Mail Log1.1.3Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-514103 days apartWordPress WP Mail Log Plugin <= 1.1.2 is vulnerable to Arbitrary File Upload
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-434 · Unrestricted Upload of File with Dangerous Type

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

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