YOURLS has stored XSS in referrer statistics chart via crafted Referer header

Date Aug 21, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product Composer · yourls/yourls

CVE CVE-2026-63135

High-risk advisory CVE-2026-63135

Summary

YOURLS has stored XSS in referrer statistics chart via crafted Referer header

Why it matters

GitHub has published a reviewed security advisory for yourls/yourls. Prioritize it with other application dependency updates.

Operator check

Check whether yourls/yourls is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-5h77-88j3-r659 NVD — CVE-2026-63135 Source reference

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

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