Information disclosure via AutoFill protection bypass
Published Jan 23, 2023 · Updated Feb 28, 2025
Security feature bypass in Microsoft Edge before 109.0.1518.61 allows remote attackers to disclose protected AutoFill data via a crafted URL. Edge's AutoFill Protection fails to preserve its access restriction when the browser processes the crafted URL; Microsoft has not published the underlying code-level error. Exploitation requires a user to click the attacker-supplied URL, and the documented impact is limited to disclosure rather than data modification or service interruption.
Summary
What happened
Security feature bypass in Microsoft Edge before 109.0.1518.61 allows remote attackers to disclose protected AutoFill data via a crafted URL. Edge's AutoFill Protection fails to preserve its access restriction when the browser processes the crafted URL; Microsoft has not published the underlying code-level error. Exploitation requires a user to click the attacker-supplied URL, and the documented impact is limited to disclosure rather than data modification or service interruption.
The record
- CVE
- CVE-2023-21719
- Published
- Jan 23, 2023
- Updated
- Feb 28, 2025
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-863, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 23, 2023CVE publishedPublication date reported by the CVE source.
- Feb 28, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0 <109.0.1518.61
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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