What’s Vulnerable › Vulnerabilities

CVE-2026-111168: LibreDesk before 2.9.0-rc.8 Stored XSS via SVG Upload Content-Type Parameter

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-16
• Weakness: CWE-79

Description

LibreDesk before 2.9.0-rc.8 contains a stored cross-site scripting vulnerability that allows authenticated agents to execute script by uploading SVGs with malformed Content-Type parameters. Attackers can upload an SVG typed 'image/svg+xml; x' via /api/v1/media so GET /uploads/{uuid} serves it inline without sandbox, running script in any viewing agent's or administrator's session.

Affected products

• abhinavxd libredesk: before 2.9.0-rc.8 — fixed in 2.9.0-rc.8

How to fix

Upgrade to a fixed version: abhinavxd libredesk 2.9.0-rc.8. Check the vendor advisory for mitigations.

References

• https://github.com/abhinavxd/libredesk
• https://github.com/abhinavxd/libredesk/blob/086b08200d667f2cc083635e925d6f5e7b0097e3/cmd/media.go#L255-L272
• https://github.com/abhinavxd/libredesk/blob/086b08200d667f2cc083635e925d6f5e7b0097e3/internal/media/media.go#L422-L433
• https://github.com/abhinavxd/libredesk/commit/ab3a5ca682fcc1caec0950fc607b66caea49bec3
• https://github.com/abhinavxd/libredesk/pull/641
• https://github.com/abhinavxd/libredesk/releases/tag/v2.9.0-rc.8
• https://www.vulncheck.com/advisories/libredesk-before-2.9.0-rc.8-stored-xss-via-svg-upload-content-type-parameter

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