What is the CVSS score of CVE-2020-10257?

CVE-2020-10257 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 8.9%.

Is there a public PoC exploit available for CVE-2020-10257?

Yes, a public proof-of-concept exploit is available for CVE-2020-10257. Prioritise patching immediately. EPSS: 8.9%.

Addons CVE-2020-10257

CRITICAL

Code Injection (CWE-94)

2020-03-10 cve@mitre.org

PHP WordPress RCE Code Injection Addons Right Way Ozeum Museum Chit Club Board Games Yottis Simple Portfolio Helion Agency Portfolio Amuli Nelson Barbershop Tattoo Salon Hallelujah Church Prider Pride Fest Mystik Esoterics Skydiving And Flying Company Dronex Aerial Photography Services Samadhi Buddhist Tantum Rent A Car Rent A Bike Rent A Scooter Multiskin Theme Scientia Public Library Blabber Impacto Patronus Multi Landing Rare Radio Piqes Creative Startup Agency Wordpress Theme Kratz Digital Agency Pixefy Netmix Broadband Telecom Kids Care Briny Diving Wordpress Theme Tornados Gridiron Yungen Digital Marketing Agency Fc United Football Bugster Pests Control Rumble Single Fighter Boxer News Gym Store Tacticool Shooting Range Wordpress Theme Coinpress Cryptocurrency Magazine Blog Wordpress Theme Vihara Ashram Buddhist Katelyn Gutenberg Wordpress Blog Theme Heaven 11 Multiskin Property Theme Especio Food Gutenberg Theme Partiso Electioncampaign Kargo Freight Transport Maxify Startup Blog Lingvico Language Learning School Aldo Gutenberg Wordpress Blog Theme Vixus Startup Mobile Application Wellspring Water Filter Systems Nazareth Church Tediss Soft Play Area Cafe Child Care Center Yolox Startup Magazine Blog Wordpress Theme Meals And Wheels Food Truck Rosalinda Vegetarian Health Coach Vapester Modern Housewife Housewife And Family Blog Chainpress Justitia Multiskin Lawyer Theme Hobo Digital Nomad Blog Rhodos Creative Corporate Wordpress Theme Buzz Stone Magazine Blog Corredo Sport Event Savejulia Personal Fundraising Campaign Bonkozoo Zoo Renewal Plastic Surgeon Clinic Gloss Blog Plumbing Repair Building Construction Wordpress Theme Topper Theme And Skins Themerex

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-94 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Code injection prevention, sandbox exec MITRE ATT&CK 2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could inject and execute arbitrary code within the application by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 8.9% exploitation probability (EPSS)

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AnalysisAI

The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because includes/plugin.rest-api.php calls trx_addons_rest_get_sc_layout with an unsafe sc parameter. Affected products include: Themerex Addons, Themerex Ozeum-Museum, Themerex Chit Club-Board Games, Themerex Yottis-Simple Portfolio, Themerex Helion-Agency \&Portfolio. Version information: before 2020.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because includes/plugin.rest-api.php calls trx_addons_rest_get_sc_layout with an unsafe sc parameter.

Threat Intelligence Overview

EPSS Score

8.9%

Top 5% exploitable

Exploit

POC

Public exploit code exists

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS POC (1)

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 8.9%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +9

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.