Reported vulnerability

InstaWP Connect <= 0.1.3.6 - Unauthenticated Cryptographic Key Disclosure

Q: Which versions of InstaWP Connect – 1-click WP Staging & Migration are affected?

Wordfence lists these affected versions: Start version unspecified, through 0.1.3.6. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for InstaWP Connect – 1-click WP Staging & Migration?

Wordfence reports a fix for this issue in InstaWP Connect – 1-click WP Staging & Migration. It lists these fixed versions: 0.1.3.7. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 11 Aug 2026

Updated 11 Aug 2026

CVE-2026-13457

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

high · CVSS 7.5

The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6 via the (top-level script) function. This is due to the plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled (Options +Indexes) for the wp-content/instawpbackups/ directory, and time limited because it can only be exploited during the migration period.

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

InstaWP Connect – 1-click WP Staging & Migration

Software: plugin · instawp-connect
Affected versions: Start version unspecified, through 0.1.3.6
Fix availability: Fix available
Fixed versions: 0.1.3.7

Recommended action

Update to version 0.1.3.7, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/f5319467-92f6-4d4f-a76a-12aeb25d3c6b?source=api-prod

Data sources and licences

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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.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of InstaWP Connect – 1-click WP Staging & Migration are affected?

Wordfence lists these affected versions: Start version unspecified, through 0.1.3.6. Use the version checker above to compare your installed release with this report.

Is a fix available for InstaWP Connect – 1-click WP Staging & Migration?

Wordfence reports a fix for this issue in InstaWP Connect – 1-click WP Staging & Migration. It lists these fixed versions: 0.1.3.7. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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