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Spectra <= 2.19.14 — Authenticated (Contributor+) Stored Cross-Site Scripting via Custom CSS

CVE-2025-11162Published · Updated

Action summary

Affected: ≤2.19.14Update to 2.19.15 or newer

All remediation steps
Severity
Medium6.4
CVSS
6.4
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Spectra Legacy – Gutenberg Blocks ultimate-addons-for-gutenberg

  1. Affected≤ 2.19.14
  2. Patched in2.19.15

Update to 2.19.15 or newer.

You are affected if you run ≤ 2.19.14. Version 2.19.15 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Spectra Legacy – Gutenberg Blocks.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 2.19.15, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Spectra Legacy – Gutenberg Blocks to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Muhammad Yudha - DJ.

The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS in all versions up to, and including, 2.19.14 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.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Spectra Legacy – Gutenberg Blocks

All 33
More vulnerabilities in Spectra Legacy – Gutenberg Blocks
SeverityVulnerabilityCVEPublished
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤2.20.4Update to 2.20.5
CVE-2026-119520
Medium6.5Missing Authorization to Unauthenticated Limited Theme File Deletion and Modification via 'page', 'path', and 'settings' GET Parameters
≤2.20.4Update to 2.20.5
CVE-2026-92294
Medium4.3Authenticated (Contributor+) Sensitive Information Exposure
≤2.20.0Update to 2.20.1
CVE-2026-16302
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via uagb/image Block
≤2.19.28Update to 2.19.29
CVE-2026-12900
Medium4.3Authenticated (Contributor+) CSS Injection
<2.20.0Update to 2.20.0
CVE-2026-10827

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent HeaderCVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form SubmissionCVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' ParameterCVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 6.4

  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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