@apostrophecms/seo Vulnerable to Stored XSS via Unsanitized Google Analytics / GTM ID Injected into Script Tag

Date Jul 31, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product npm · @apostrophecms/seo

CVE CVE-2026-53608

High-risk advisory CVE-2026-53608

Summary

@apostrophecms/seo Vulnerable to Stored XSS via Unsanitized Google Analytics / GTM ID Injected into Script Tag

Why it matters

GitHub has published a reviewed security advisory for @apostrophecms/seo. Prioritize it with other application dependency updates, especially because EPSS places it in the 11% percentile.

Operator check

Check whether @apostrophecms/seo is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.2%; percentile: 11%.

Sources

GitHub Advisory GHSA-wf43-fpp3-cf65 NVD — CVE-2026-53608 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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