What’s Vulnerable › Vulnerabilities

CVE-2026-45229: Quark Drive (quark-auto-save) < 0.8.5 Mass Assignment via POST /update

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-13 · updated 2026-10-26
• Weakness: CWE-915

Description

Quark Drive before 0.8.5 contains a mass assignment vulnerability in the POST /update endpoint that allows authenticated attackers to overwrite administrator credentials by posting an arbitrary webui object to the config_data dictionary. Attackers can exploit insufficient deny-list filtering to permanently replace stored login credentials, lock out legitimate administrators, and gain persistent access to all configured tasks, cloud tokens, and notification services.

Affected products

• Cp0204 quark-auto-save: before 0.8.5 — fixed in 0.8.5

How to fix

Upgrade to a fixed version: Cp0204 quark-auto-save 0.8.5. Check the vendor advisory for mitigations.

References

• https://github.com/Cp0204/quark-auto-save/commit/ea8377a596446291953dbe36e2d119d85bcd865b
• https://github.com/Cp0204/quark-auto-save/releases/tag/v0.8.5
• https://www.vulncheck.com/advisories/quark-drive-mass-assignment-via-post-update

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