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BackWPup <= 4.0.2 — Plaintext Storage of Backup Destination Password

CVE-2023-5775Published · Updated

Action summary

Affected: ≤4.0.2Update to 4.0.3 or newer

All remediation steps
Severity
Low2.2
CVSS
2.2
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:H Privileges required
High
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:N Availability
None
Weakness
CWE-256 Plaintext Storage of a Password
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

BackWPup – WordPress Backup & Restore Plugin backwpup

  1. Affected≤ 4.0.2
  2. Patched in4.0.3

Update to 4.0.3 or newer.

You are affected if you run ≤ 4.0.2. Version 4.0.3 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under BackWPup – WordPress Backup & Restore Plugin.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 4.0.3, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch BackWPup – WordPress Backup & Restore Plugin to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Stefan Marjanov.

The BackWPup plugin for WordPress is vulnerable to Plaintext Storage of Backup Destination Password in all versions up to, and including, 4.0.2. This is due to to the plugin improperly storing backup destination passwords in plaintext. This makes it possible for authenticated attackers, with administrator-level access, to retrieve the password from the password input field in the UI or from the options table where the password is stored.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in BackWPup – WordPress Backup & Restore Plugin

All 16
More vulnerabilities in BackWPup – WordPress Backup & Restore Plugin
SeverityVulnerabilityCVEPublished
Medium5.3Unauthenticated Information Exposure
<5.7.7Update to 5.7.7
CVE-2026-86826
Medium4.9Authenticated (Administrator+) Path Traversal
<5.7.7Update to 5.7.7
CVE-2026-86828
Medium5.35.7.6 - Missing Authorization
3.3 – 5.7.6Update to 5.7.7
CVE-2026-86827
Medium4.35.7.4 - Missing Authorization
5.2.2 – 5.7.4Update to 5.7.5
CVE-2026-86815
High7.2Unauthenticated Stored Cross-Site Scripting
≤5.7.4Update to 5.7.5
CVE-2026-65443

Timeline

  1. CVE published

    Severity low, CVSS 2.2

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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