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  4. CVE 2026 124412 wordpress slim seo plugin 4115 content injection
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Back to active CVEs
Medium · CVSS 4.3CVE-2026-124412

WordPress Slim SEO plugin <= 4.11.5 - Content Injection vulnerabilityCVE-2026-124412

Answer in brief

CVE-2026-124412 records a Medium severity (CVSS 4.3) vulnerability in WordPress Slim SEO plugin <= 4.11.5 - Content Injection vulnerability. The current sources do not mark it as known exploited. The current feed maps eLightUp/slim-seo (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 13, 2026Updated Nov 13, 2026Source checked Nov 13, 2026First seen by HOL Nov 13, 2026Material review Nov 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps eLightUp/slim-seo (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
eLightUp/slim-seogeneric>=0 <=4.11.5Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for eLightUp/slim-seo.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress Slim SEO plugin to the latest available version (at least 4.11.6).

Evidence timeline and material changes

  1. Published upstream

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 13, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in eLightUp Slim SEO slim-seo allows Code Injection.This issue affects Slim SEO: from n/a through 4.11.5.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-80
Source
CVE List V5
Source checked
Nov 13, 2026
References
1 linked source
Open source record