CVE-2026-126954

Description

Glance from 0.7.9 before 0.8.8 contains a stored cross-site scripting vulnerability that allows malicious extension endpoints to inject javascript: URLs via the Widget-Title-URL response header. Attackers controlling an extension endpoint can execute script when users click the widget title, reading dashboard pages through same-origin requests and exfiltrating content.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 2.3CVSS 4.0, Lowfrom the CNA (VulnCheck)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
• 4.7CVSS 3.1, Mediumfrom the CNA (VulnCheck)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 13 Nov 2026 Published

Weakness

• CWE-79

References

• GitHub Security Advisory (GHSA-96x7-3hwp-rcfc)vendor-advisory
• GitHub Security Advisory (GHSA-f2c4-p935-ffpj)vendor-advisory
• github.compatch
• github.comtechnical-description
• github.comtechnical-description
• glance v0.8.8 Release Notesrelease-notes
• VulnCheck Advisory: Glance 0.7.9 before 0.8.8 Stored XSS via Widget-Title-URL Headerthird-party-advisory