Is CVE-2026-57815 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57815 being exploited in the wild.

How severe is CVE-2026-57815?

High severity, with a CVSS score of 7.5, published 13 July 2026.

Which products and versions are affected?

WPMU DEV Forminator <= 1.55.0.2.

Is there a fix for CVE-2026-57815?

A patch was published: Fixed in version 1.55.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-57815 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-57815?

Check whether you run WPMU DEV Forminator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57815: WPMU DEV Forminator path traversal and arbitrary file download

Q: Which products and versions are affected?

WPMU DEV Forminator <= 1.55.0.2.

Q: Is there a fix for CVE-2026-57815?

A patch was published: Fixed in version 1.55.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-57815 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-57815?

Check whether you run WPMU DEV Forminator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57815 · Severity: high · CVSS 7.5 · Published 2026-07-13

Forminator is a popular WordPress plugin used to create forms, polls, and quizzes. A security flaw in this plugin allows unauthorized individuals to access and download sensitive files from the web server, such as configuration files containing database credentials or site backups. This could lead to a full compromise of the website and its data.

Technologies: WPMU DEV Forminator. Vendors: WPMU DEV.

Quick answers

Is CVE-2026-57815 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57815 being exploited in the wild.
How severe is CVE-2026-57815?: High severity, with a CVSS score of 7.5, published 13 July 2026.
Which products and versions are affected?: WPMU DEV Forminator <= 1.55.0.2.
Is there a fix for CVE-2026-57815?: A patch was published: Fixed in version 1.55.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57815 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-57815?: Check whether you run WPMU DEV Forminator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Path Traversal vulnerability (CWE-22) exists in the WPMU DEV Forminator plugin for WordPress through version 1.55.0.2. The flaw stems from improper limitation of pathnames, which allows an unauthenticated remote attacker to perform arbitrary file downloads via specially crafted requests. By exploiting this, an attacker can read sensitive system files, including wp-config.php or other internal data, without any prior authentication or user interaction. The issue is resolved in version 1.55.1.

Affected products

WPMU DEV Forminator <= 1.55.0.2

Timeline

2026-06-23: disclosed: Reported by researcher daroo
2026-07-08: advisory: Patchstack published advisory
2026-07-13: advisory: NVD published CVE record
patched: Fixed in version 1.55.1

References

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