# CVE-2026-57650: BlockArt Magazine Blocks Contributor XSS

Source: https://junglewise.ai/threats/cve-2026-57650-blockart-magazine-blocks-contributor-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-26. Updated: 2026-06-26  
License: CC BY 4.0 with a link back

CVE-2026-57650 · Severity: medium · CVSS 6.5 · Published 2026-06-26

Magazine Blocks is a WordPress plugin used to create layout sections for digital magazines and news sites. A security flaw allows users with 'Contributor' level access to inject malicious scripts into website pages. If a site administrator or visitor views the affected content, these scripts could redirect users to malicious sites, display unauthorized advertisements, or compromise the viewer's session.

Technologies: [BlockArt Magazine Blocks](https://junglewise.ai/threats/technologies/magazine-blocks). Vendors: [BlockArt](https://junglewise.ai/threats/vendors/blockart).

## Quick answers

**Is CVE-2026-57650 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57650 being exploited in the wild.

**How severe is CVE-2026-57650?** Medium severity, with a CVSS score of 6.5, published 26 June 2026.

**Which products and versions are affected?** BlockArt Magazine Blocks <= 1.8.3.

**Is there a fix for CVE-2026-57650?** A patch was published on 2026-06-26: Version 1.8.4 released to address the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-57650 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57650?** Check whether you run BlockArt Magazine 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

A Stored Cross-Site Scripting (XSS) vulnerability exists in the Magazine Blocks plugin for WordPress due to improper neutralization of input during web page generation (CWE-79). The flaw allows authenticated attackers with 'Contributor' level permissions or higher to inject arbitrary web scripts into pages. These scripts execute in the context of a victim's browser when they visit the affected page, requiring some user interaction (viewing the crafted content). The vulnerability is addressed in version 1.8.4.

## Affected products

- BlockArt Magazine Blocks <= 1.8.3

## Timeline

- 2026-02-06: other: Reported by Jarno Vos
- 2026-06-26: disclosed: Early warning sent to Patchstack customers
- 2026-06-26: advisory: Public advisory published by Patchstack and NVD
- 2026-06-26: patched: Version 1.8.4 released to address the vulnerability

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/magazine-blocks/vulnerability/wordpress-magazine-blocks-plugin-1-8-3-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/magazine-blocks/vulnerability/wordpress-magazine-blocks-plugin-1-8-3-cross-site-scripting-xss-vulnerability?_s_id=cve)