Description
The Simple SEO Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 1.2.8 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. WordPress KSES does not strip malicious shortcode attribute values on post save, allowing contributor-level users to persist payloads that execute for any visitor, including administrators reviewing the post.
Published: 2026-06-05
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 07 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Spyrosvl
Spyrosvl simple Seo Slideshow
Wordpress
Wordpress wordpress
Vendors & Products Spyrosvl
Spyrosvl simple Seo Slideshow
Wordpress
Wordpress wordpress

Sat, 06 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 06 Jun 2026 00:00:00 +0000

Type Values Removed Values Added
Description The Simple SEO Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 1.2.8 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. WordPress KSES does not strip malicious shortcode attribute values on post save, allowing contributor-level users to persist payloads that execute for any visitor, including administrators reviewing the post.
Title Simple SEO Slideshow <= 1.2.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


Subscriptions

Spyrosvl Simple Seo Slideshow
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-06-06T11:49:59.059Z

Reserved: 2026-05-18T21:11:56.627Z

Link: CVE-2026-8900

cve-icon Vulnrichment

Updated: 2026-06-06T11:49:53.914Z

cve-icon NVD

Status : Deferred

Published: 2026-06-06T00:16:42.013

Modified: 2026-06-08T14:57:14.757

Link: CVE-2026-8900

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-07T11:15:32Z

Weaknesses