CVE-2026-126954

MEDIUM 4.7

Glance 0.7.9 before 0.8.8 Stored XSS via Widget-Title-URL Header

CVSS Score

4.7

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	glanceapp
Product	glance
Published	Nov 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

glanceapp / glance

0.7.9 < 0.8.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/glanceapp/glance/security/advisories/GHSA-96x7-3hwp-rcfc github.com: https://github.com/glanceapp/glance/security/advisories/GHSA-f2c4-p935-ffpj github.com: https://github.com/glanceapp/glance/commit/e19081cfa029edbe16b1354ffe03076a8cdf0244 github.com: https://github.com/glanceapp/glance/blob/v0.8.7/internal/glance/widget-extension.go#L151-L152 github.com: https://github.com/glanceapp/glance/blob/v0.8.7/internal/glance/templates/widget-base.html#L5 github.com: https://github.com/glanceapp/glance/releases/tag/v0.8.8 vulncheck.com: https://www.vulncheck.com/advisories/glance-0.7.9-before-0.8.8-stored-xss-via-widget-title-url-header

Credits

Sandipkumar sah Svilen Markov