CVE-2026-1905: Sphere Manager <= 1.0.2 - Authenticated (Contributor+) Cross-Site Scripting via 'width' Shortcode Attribute

Severity: medium (CVSS 6.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-14 · updated 2026-06-17
Weakness: CWE-79

Description

The Sphere Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'width' parameter in the 'show_sphere_image' shortcode in all versions up to, and including, 1.0.2 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.

Affected products

devmw Sphere Manager: through 1.0.2

References

https://plugins.trac.wordpress.org/browser/sphere-manager/tags/1.0.2/plugin.php#L232
https://plugins.trac.wordpress.org/browser/sphere-manager/trunk/plugin.php#L232
https://www.wordfence.com/threat-intel/vulnerabilities/id/a27dfc37-81cf-4e95-a331-02fc952e34af?source=cve

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