CVE-2023-7164

BackWPup <= 4.0.3 - Sensitive Information Exposure

2023-12-18 00:00

Strategic Overview

Status: Patched in 4.0.4
Affected Plugin: BackWPup – WordPress Backup & Restore Plugin
Affected Version: <= 4.0.3
CVSS: 7.5High
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2023-7164

View all BackWPup – WordPress Backup & Restore Plugin vulnerabilities

At a glance

CVE-2023-7164 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the BackWPup WordPress plugin, affecting versions <= 4.0.3. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 4.0.4; sites on affected versions should update now. Disclosed December 2023, reported by Dmitrii Ignatyev.

Vulnerability Overview

The BackWPup – WordPress Backup Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.0.3. This makes it possible for unauthenticated attackers to extract sensitive user or configuration data.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in BackWPup <= 4.0.3 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For BackWPup the fix is 4.0.4: builds <= 4.0.3 are affected, anything from 4.0.4 onward is not.

Remediation

Update to version 4.0.4, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: BackWPup 4.0.4 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-7164 https://www.wordfence.com/threat-intel/vulnerabilities/id/85abf905-ec47-4847-b3d6-8570fd5eb287 https://nvd.nist.gov/vuln/detail/CVE-2023-7164

Related records

Other vulnerabilities in BackWPup – WordPress Backup & Restore Plugin

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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