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Stackable – Page Builder Gutenberg Blocks <= 3.13.6 — Unauthenticated CSS Injection

CVE-2024-8760Published · Updated

Action summary

Affected: ≤3.13.6Update to 3.13.7 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:N Integrity
None
A:N Availability
None
Weakness
CWE-94 Improper Control of Generation of Code
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Stackable – Page Builder Gutenberg Blocks stackable-ultimate-gutenberg-blocks

  1. Affected≤ 3.13.6
  2. Patched in3.13.7

Update to 3.13.7 or newer.

You are affected if you run ≤ 3.13.6. Version 3.13.7 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Stackable – Page Builder Gutenberg Blocks.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 3.13.7, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Stackable – Page Builder Gutenberg Blocks to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Francesco Carlucci.

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to CSS Injection in all versions up to, and including, 3.13.6. This makes it possible for unauthenticated attackers to embed untrusted style information into comments resulting in a possibility of data exfiltration such as admin nonces with limited impact. These nonces could be used to perform CSRF attacks within a limited time window. The presence of other plugins may make additional nonces available, which may pose a risk in plugins that don't perform capability checks to protect AJAX actions or other actions reachable by lower-privileged users.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Stackable – Page Builder Gutenberg Blocks

All 10
More vulnerabilities in Stackable – Page Builder Gutenberg Blocks
SeverityVulnerabilityCVEPublished
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'save' Parameter
≤3.19.9Update to 3.19.10
CVE-2026-9601
Medium6.4Authenticated (Author+) Stored Cross-Site Scripting
≤3.19.5Update to 3.19.6
CVE-2025-47500
Medium4.3Missing Authorization
≤3.18.1Update to 3.19.0
CVE-2025-60094
Medium4.3Authenticated (Contributor+) Sensitive Information Exposure
≤3.18.1Update to 3.19.0
CVE-2025-60095
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤3.13.11Update to 3.13.12
CVE-2024-12117

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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