Is CVE-2026-15950 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15950 being exploited in the wild.

How severe is CVE-2026-15950?

Medium severity, with a CVSS score of 6.4, published 1 August 2026.

Which products and versions are affected?

CozyThemes Cozy Blocks <= 2.2.11.

Is there a fix for CVE-2026-15950?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15950 attacked?

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

Am I affected by CVE-2026-15950?

Check whether you run CozyThemes Cozy Blocks 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-2026-15950: Cozy Blocks WordPress plugin Stored XSS in layoutCircle.alignment

Q: Is there a fix for CVE-2026-15950?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-15950 attacked?

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

Q: Am I affected by CVE-2026-15950?

Check whether you run CozyThemes Cozy Blocks 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-2026-15950 · Severity: medium · CVSS 6.4 · Published 2026-08-01

Cozy Blocks is a WordPress plugin used to design websites with custom layouts and blocks. A security flaw allows users with contributor-level access or higher to embed malicious scripts into website pages. These scripts will automatically run in the browser of any visitor who views the affected page, potentially leading to unauthorized actions or data theft.

Technologies: CozyThemes Cozy Blocks. Vendors: CozyThemes.

Quick answers

Is CVE-2026-15950 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15950 being exploited in the wild.
How severe is CVE-2026-15950?: Medium severity, with a CVSS score of 6.4, published 1 August 2026.
Which products and versions are affected?: CozyThemes Cozy Blocks <= 2.2.11.
Is there a fix for CVE-2026-15950?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15950 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-15950?: Check whether you run CozyThemes Cozy Blocks 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

The Cozy Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on the 'layoutCircle.alignment' attribute within its block components. This vulnerability exists in all versions up to and including 2.2.11. An authenticated attacker with at least contributor-level permissions can exploit this by injecting arbitrary web scripts into a page via the Gutenberg editor. Because the payload is stored in the database and rendered without proper neutralization, the script executes in the context of any user's browser session when they access the affected page. A patch was introduced in version 2.2.12.

Affected products

cozythemes Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates <= 2.2.11

Timeline

2026-08-01: disclosed
2026-08-01: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.