WordPress security by component

Spectra Legacy

Plugin description

Spectra Legacy adds additional content blocks and layout elements to the WordPress block editor.

Spectra Legacy (spectra-legacy) is a WordPress plugin with 1 published CVE record in this archive. The latest tracked vulnerability was published Aug 01, 2026; the highest published CVSS base score is 3.5.

Plugin slug: spectra-legacy

Latest vulnerability

CVE-2026-10827: Spectra Legacy block styles let Contributors inject arbitrary CSS

Spectra Legacy before 2.20.0 uses several Contributor-controlled block style attributes to construct front-end CSS without adequate validation or escaping. A Contributor-or-higher user can store arbitrary CSS that is served to anonymous visitors of the affected page, enabling defacement, interface redressing, forced external resource loads and limited data exfiltration through attribute selectors. WordPress KSES removes the script-tag breakout at this role, so the published.

PublishedAug 01, 2026

Known safe version2.20.0

Published vulnerabilities for spectra-legacy
		Safe version
Aug 01, 2026	CVE-2026-10827 Spectra Legacy block styles let Contributors inject arbitrary CSS Spectra Legacy before 2.20.0 uses several Contributor-controlled block style attributes to construct front-end CSS without adequate validation or escaping. A Contributor-or-higher user can store arbitrary CSS that is served to anonymous visitors of the affected page, enabling defacement, interface redressing, forced external resource loads and limited data exfiltration through attribute selectors. WordPress KSES removes the script-tag breakout at this role, so the published.	2.20.0	CVE3.5

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