All in One SEO <= 5.0.2 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Query Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| smub | All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) | up to 5.0.2 | — | No fix listed | CNA |
- All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) Vendorsmub Affected up to 5.0.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-03 Threatist record created from CVE-2026-100152
- 2026-10-03 Alias added: GHSA-5q32-9w97-g3v9
- 2026-10-03 CISA SSVC decision points changed
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9fa47d2b-e9a9-4d1b-b933-fd4aa453ba1a?source=cve
- https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.2/app/Common/Breadcrumbs/Frontend.php#L280
- https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.2/app/Common/Breadcrumbs/Frontend.php#L104
- https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.2/app/Common/Breadcrumbs/Breadcrumbs.php#L242
- https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.2/app/Common/Breadcrumbs/Tags.php#L108
- https://plugins.trac.wordpress.org/changeset/3723760/all-in-one-seo-pack/trunk/app/Common/Breadcrumbs/Frontend.php?old=3709877&old_path=all-in-one-seo-pack%2Ftrunk%2Fapp%2FCommon%2FBreadcrumbs%2FFrontend.php
- https://plugins.trac.wordpress.org/changeset/3723760/all-in-one-seo-pack/trunk/app/Common/Breadcrumbs/Frontend.php
More smub vulnerabilities
- TI-2026-07755 WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost CVSS 3.1HIGH 8.8
- TI-2026-83530 Remote code execution in NextGEN Gallery plugin for WordPress CVSS 3.1HIGH 8.8
- TI-2026-78567 PHP object injection in Duplicator and Duplicator Pro plugins CVSS 3.1HIGH 8.8
- TI-2026-01649 ExactMetrics 8.6.0 - 9.0.2 - Authenticated (Custom) Insecure Direct Object Reference to Arbitrary Plugin Installation CVSS 3.1HIGH 8.8
- TI-2026-01160 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.0.4 - Authenticated (Author+) Local File Inclusion CVSS 3.1HIGH 8.8
- TI-2025-12465 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 3.59.12 - Authenticated… CVSS 3.1HIGH 8.8
Sources
- CVE-2026-100152 · CVE Program
- CVE-2026-100152 · NVD
- FIRST EPSS
- GHSA-5q32-9w97-g3v9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences