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NVD / CVE Program· CNA Patchstack

CVE-2023-51409: WordPress AI Engine plugin <= 1.9.98 - Unauthenticated Arbitrary File Upload vulnerability

Noroxi assessment

Priority: Plan (action score 58/100)

  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 63% (FIRST EPSS); higher than 99.1% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Jordy Meow AI Engine: ChatGPT Chatbot 1.9.99.

Add it to your regular patch cycle. Upgrade to Jordy Meow AI Engine: ChatGPT Chatbot 1.9.99 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Unrestricted Upload of File with Dangerous Type vulnerability in Jordy Meow AI Engine: ChatGPT Chatbot.This issue affects AI Engine: ChatGPT Chatbot: from n/a through 1.9.98.

CriticalCVSS 9.8 · v3.1—Proof of concept Fix available
Published
Apr 12, 2024
Updated
Jun 17, 2026
EPSS
63.0% · 99th percentile

Report tools

JSON

Action score

58

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
19 / 30 · 63.0%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · Patchstack
10.0
0.2 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Is AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini on your site?

WP Lens reads your site's plugin, theme and WordPress versions from the outside and matches them to known vulnerabilities. Works without an account.

Follow CVE-2023-51409

Is AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini on your site?

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
meowappsai engine

Affected versions

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

  • meowapps ai enginebefore 1.9.99

Versions reported by the vendor

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

  • Jordy Meow AI Engine: ChatGPT Chatbot

    • n/a and later · up to and including 1.9.98affectedfixed in 1.9.99

Same product

meowapps: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-5071AI Engine 2.8.0 - 2.8.3 - Authenticated (Subscriber+) Insufficient Authorization to Privilege Escalation via MCP
    35Monitor
  • CVE-2025-6238AI Engine 2.8.4 - Insecure OAuth Implementation
    32Monitor
  • CVE-2024-10499AI-Engine < 2.6.5 - Admin+ SQLi
    28Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2024-29090Mar 28, 2024 · WordPress AI Engine plugin <= 2.1.4 - Server Side Request Forgery (SSRF) vulnerability
    27Monitor
  • ← EarlierCVE-2024-29100Mar 28, 2024 · WordPress AI Engine plugin <= 2.1.4 - Arbitrary File Upload vulnerability
    28Monitor
  • Later →CVE-2024-34440May 14, 2024 · WordPress AI Engine plugin <= 2.2.63 - Auth. Arbitrary File Upload 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
Jordy Meow AI Engine: ChatGPT Chatbot1.9.99Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2023-51409 —
Proof-of-concept repository on GitHubstars:12024-02-22
Proof-of-concept repository on GitHubstars:02025-01-03
Proof-of-concept repository on GitHubstars:12026-01-22

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.

  1. First PoC-50 d
  2. Published
  3. TodayOct 29, 2026+930 d
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-2024-2910015 days apartWordPress AI Engine plugin <= 2.1.4 - Arbitrary File Upload vulnerability
    28Monitor
  • CVE-2024-3444032 days apartWordPress AI Engine plugin <= 2.2.63 - Auth. Arbitrary File Upload vulnerability
    28Monitor
  • CVE-2024-069967 days apartAI Engine <= 2.1.4 - Authenticated(Editor+) Arbitrary File Upload via add_image_from_url
    28Monitor

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.
  • No account or password is required.
  • 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
None
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:N/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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records