CVE-2025-10306

Backup Bolt <= 1.4.1 - Authenticated (Admin+) Arbitrary File Download

2025-10-02 00:00

Strategic Overview

Status: Patched in 1.5.0
Affected Plugin: Backup Bolt
Affected Version: <= 1.4.1
CVSS: 3.8Low
Weakness type: CWE-73 · External Control of File Name or Path
CVE: CVE-2025-10306

At a glance

CVE-2025-10306 is a low-severity External Control of File Name or Path vulnerability in the Backup Bolt WordPress plugin, affecting versions <= 1.4.1. It carries a CVSS score of 3.8 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 1.5.0; sites on affected versions should update now. Disclosed October 2025, reported by Jonas Benjamin Friedli.

Vulnerability Overview

The Backup Bolt plugin for WordPress is vulnerable to arbitrary file downloads and backup location writes in all versions up to, and including, 1.4.1 via the process_backup_batch() function. This makes it possible for authenticated attackers, with Administrator-level access and above, to download directories outside of the webroot and write backup zip files to arbitrary locations.

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 interaction from a victim user.

CWE-73: External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

Remediation

Update to version 1.5.0, or a newer patched version

How does WordSec protect against this?

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Backup Bolt 1.5.0 closes this, and updating the plugin is the step that ends it.

Firewall
Scanner
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-10306 https://www.wordfence.com/threat-intel/vulnerabilities/id/63f38644-a021-407a-9882-2c8435849c08 https://nvd.nist.gov/vuln/detail/CVE-2025-10306

Related records

Other vulnerabilities in Backup Bolt

CVSS Vector

3.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/