WordPress plugin
BackWPup <= 3.4.1 — Unauthenticated Backup Download
CVE-2017-2551Published · Updated Action summary
Affected: <3.4.2Update to 3.4.2 or newer
All remediation steps- Severity
- High7.5
- CVSS
- 7.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:NIntegrity- None
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
BackWPup – WordPress Backup & Restore Plugin backwpup
- Affected< 3.4.2
- Patched in3.4.2
Update to 3.4.2 or newer.
You are affected if you run < 3.4.2. Version 3.4.2 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.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 3.4.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch BackWPup – WordPress Backup & Restore Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Larry W. Cashdollar.
Vulnerability in Wordpress plugin BackWPup before v3.4.2 allows possible brute forcing of backup file for download.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in BackWPup – WordPress Backup & Restore Plugin
All 16| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Information Exposure <5.7.7Update to 5.7.7 | CVE-2026-86826 | |
| Medium4.9 | Authenticated (Administrator+) Path Traversal <5.7.7Update to 5.7.7 | CVE-2026-86828 | |
| Medium5.3 | 5.7.6 - Missing Authorization 3.3 – 5.7.6Update to 5.7.7 | CVE-2026-86827 | |
| Medium4.3 | 5.7.4 - Missing Authorization 5.2.2 – 5.7.4Update to 5.7.5 | CVE-2026-86815 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤5.7.4Update to 5.7.5 | CVE-2026-65443 |
- Medium5.3Unauthenticated Information Exposure
<5.7.7Update to 5.7.7
- Medium4.9Authenticated (Administrator+) Path Traversal
<5.7.7Update to 5.7.7
- Medium5.35.7.6 - Missing Authorization
3.3 – 5.7.6Update to 5.7.7
- Medium4.35.7.4 - Missing Authorization
5.2.2 – 5.7.4Update to 5.7.5
- High7.2Unauthenticated Stored Cross-Site Scripting
≤5.7.4Update to 5.7.5
Timeline
CVE published
Severity high, CVSS 7.5
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.