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Vulnerabilities

Vulnerability · CVE-2026-6227

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non…

Published Apr 14, 2026 · catalog updated Jun 17, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2026-6227. EPSS is 1.03%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.03%
Remediation
Version ranges on file
Affected products
stated named in the record

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., ), which can be leveraged to read sensitive files such as or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 5.6.6

How to fix CVE-2026-6227

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-6227. EPSS is 1.03%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 5.6.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 1.03%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 14, 2026 · NIST NVD

    Detected

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., )

  2. Jun 17, 2026 · NIST NVD

    Updated

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., )

Sources

  • CVE.orgVulnerability recordCVE-2026-6227

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-6227

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-6227

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive sanitization of path traversal sequences.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.