Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid <= 1.8.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 1.8.4
- Affected Plugin
- Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid
- Affected Version
<= 1.8.3- CVSS
- 6.4Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2026-57650
At a glance
CVE-2026-57650 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Magazine Blocks WordPress plugin, affecting versions <= 1.8.3. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 1.8.4; sites on affected versions should update now. Disclosed June 2026, reported by Jarno Vos (jrn5151).
Vulnerability Overview
The Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.8.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in Magazine Blocks <= 1.8.3 takes an account at Contributor level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Magazine Blocks the fix is 1.8.4: builds <= 1.8.3 are affected, anything from 1.8.4 onward is not.
Remediation
Update to version 1.8.4, or a newer patched version
How does WordSec protect against this?
An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Magazine Blocks 1.8.4 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
- 6.4CVE-2024-56258: Magazine Blocks <= 1.3.20 Stored Cross-Site Scripting
CVE-2024-56258 - 6.4CVE-2024-50429: Magazine Blocks <= 1.3.15 Stored Cross-Site Scripting
CVE-2024-50429 - 6.4CVE-2024-34760: Magazine Blocks <= 1.3.6 Stored Cross-Site Scripting
CVE-2024-34760 - 6.1CVE-2024-9218: Magazine Blocks Reflected XSS
CVE-2024-9218
Other vulnerabilities in Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C