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  4. CVE 2026 100152 all in one seo 502 unauthenticated arbitrary
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Back to active CVEs
Medium · CVSS 6.5CVE-2026-100152

All in One SEO <= 5.0.2 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Query Parameter

Answer in brief

CVE-2026-100152 records a Medium severity (CVSS 6.5) vulnerability in All in One SEO <= 5.0.2 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Query Parameter. The current sources do not mark it as known exploited. The current feed maps smub/All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) (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 Oct 3, 2026Updated Oct 3, 2026Source checked Oct 3, 2026First seen by HOL Oct 3, 2026Material review Oct 3, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
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 6.5. 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 smub/All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
smub/All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)generic>=0 <=5.0.2Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for smub/All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights).
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 3, 2026

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

  2. Source modified

    Oct 3, 2026

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

  3. First seen by HOL

    Oct 3, 2026

Sources and claim methodology

  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referencewordfence.com
Upstream source description

The The All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.0.2 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. This requires the AIOSEO breadcrumb to be rendered on the search results page via the block, widget, shortcode, or template tag.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WP Ultimate Review <= 2.4.3 - Unauthenticated Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter (Split-Shortcode / Late-Registered Shortcode)Also CWE-94
  • WP Ultimate Review <= 2.4.3 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'xs_reviw_summery' ParameterAlso CWE-94
  • Ultra Addons Lite for Elementor <= 1.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Type Out WidgetSame generic ecosystem
  • Rich Showcase for Google Reviews <= 7.1.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Google Review Text (imported via Places API)Same generic ecosystem
  • WPZOOM Connect: AI Chat, Click to Chat, Social Icons & Share Buttons <= 4.7.3 - Unauthenticated Sensitive Information Disclosure via HMAC Signature Collision (Missing Domain Separation) in HMAC Signature Domain-Separation Flaw in `/yamidoo/v1/customer`…Same generic ecosystem
  • WP Ultimate Review < 2.4.4 - Unauthenticated Stored XSS via Review SubmissionSame generic ecosystem

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
CVE List V5
Source checked
Oct 3, 2026
References
7 linked sources
Open source record