What is the CVSS score of CVE-2023-6971?

CVE-2023-6971 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: 6.4%.

Is there a patch available for CVE-2023-6971?

Yes, a patch is available for CVE-2023-6971. Update the affected software to the latest version immediately.

Backup Migration CVE-2023-6971

CRITICAL

Inclusion of Functionality from Untrusted Control Sphere (CWE-829)

2023-12-23 security@wordfence.com

PHP WordPress RCE Backup Migration Wordpress Plugin Backupbliss

9.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-829 OWASP Top 10:2025 A08:2025 - Software or Data Integrity Failures ASVS 5.0 V15 - Secure Coding and Architecture Trusted source inclusion only
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

Patch available 6.4% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The Backup Migration plugin for WordPress is vulnerable to Remote File Inclusion in versions 1.0.8 to 1.3.9 via the 'content-dir' HTTP header. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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 under CWE-829. The Backup Migration plugin for WordPress is vulnerable to Remote File Inclusion in versions 1.0.8 to 1.3.9 via the 'content-dir' HTTP header. This makes it possible for unauthenticated attackers to include remote files on the server, resulting in code execution. NOTE: Successful exploitation of this vulnerability requires that the target server's php.ini is configured with 'allow_url_include' set to 'on'. This feature is deprecated as of PHP 7.4 and is disabled by default, but can still be explicitly enabled in later versions of PHP. Affected products include: Backupbliss Backup Migration.

Know when Backup Migration gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

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 Backup Migration plugin for WordPress is vulnerable to Remote File Inclusion in versions 1.0.8 to 1.3.9 via the 'content-dir' HTTP header. This makes it possible for unauthenticated attackers to include remote files on the server, resulting in code execution. NOTE: Successful exploitation of this vulnerability requires that the target server's php.ini is configured with 'allow_url_include' set to 'on'. This feature is deprecated as of PHP 7.4 and is disabled by default, but can still be explicitly enabled in later versions of PHP.

Threat Intelligence Overview

EPSS Score

6.4%

Top 7% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

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 No

EPSS 6.4%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity

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

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +6

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

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.

Affected Products (CPE)NVD

cpe:2.3:a:backupbliss:backup_migration:*:*:*:*:*:wordpress:*:*

More in Backup Migration

View all

CVE-2023-6553 CRITICAL Act Now POC

9.8 Dec 15

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1

CVE-2023-6266 HIGH Act Now POC

7.5 Jan 11

The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file

CVE-2023-7002 HIGH Act Now POC

7.2 Dec 23

The Backup Migration plugin for WordPress is vulnerable to OS Command Injection in all versions up to, and including, 1.

CVE-2023-6271 HIGH This Week POC

7.5 Jan 01

The Backup Migration WordPress plugin before 1.3.6 stores in-progress backups information in easy to find, publicly-acce

CVE-2023-6972 CRITICAL Act Now

9.8 Dec 23

The Backup Migration plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.9 vi

CVE-2023-3977 MEDIUM This Month POC

4.3 Jul 28

Several plugins for WordPress by Inisev are vulnerable to Cross-Site Request Forgery to unauthorized installation of plu

CVE-2026-7693 HIGH This Week

7.2 Aug 05

OS command injection in the Backup Migration WordPress plugin (all versions through 2.1.5.1) allows authenticated attack

CVE-2026-39480 HIGH This Week

7.5 Jun 15

Unauthenticated sensitive data exposure in the Inisev Backup Migration WordPress plugin (versions through 2.1.1) allows

CVE-2021-36884 MEDIUM This Month

5.4 Nov 19

Authenticated Persistent Cross-Site Scripting (XSS) vulnerability discovered in WordPress Backup Migration plugin <= 1.1

CVE-2023-0958 MEDIUM This Month

4.3 Jul 28

Several plugins for WordPress by Inisev are vulnerable to unauthorized installation of plugins due to a missing capabili

Same weakness CWE-829 – Inclusion of Functionality from Untrusted Control Sphere

View all

CVE-2025-32463 CRITICAL POC

9.3

CVE-2026-0770 CRITICAL POC

9.8

CVE-2026-111357 HIGH POC

7.0

CVE-2025-27607 HIGH POC

8.8

CVE-2026-1699 CRITICAL POC

10.0

CVE-2026-27941 CRITICAL POC

9.9

CVE-2020-8128 CRITICAL POC

9.8

CVE-2019-13589 CRITICAL POC

9.8

Same technique RCE

View all

CVE-2021-44228 CRITICAL POC

10.0

CVE-2017-7269 CRITICAL POC

9.8

CVE-2022-47966 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2023-3519 CRITICAL POC

9.8

CVE-2015-5119 CRITICAL POC

9.8

CVE-2016-4117 CRITICAL POC

9.8

CVE-2015-3113 CRITICAL POC

9.8

References

Advisories & patches

PATCH https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/backup-heart.php PATCH https://plugins.trac.wordpress.org/changeset/3012745/backup-backup PATCH https://www.wordfence.com/threat-intel/vulnerabilities/id/b380283c-0dbb-4d67-9f66-cb7c400c0427?source=cve

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back