UI spoofing via unconstrained autofill prompts
Published Jun 2, 2023 · Updated May 27, 2025
UI spoofing in Mozilla Firefox before 113, Firefox ESR before 102.11, and Thunderbird before 102.11 allows remote attackers to mislead users. Carefully positioned input fields cause the autocomplete subsystem to open autofill panels outside the content-area constraint, covering address bars, permission prompts, window controls, or cross-origin popups. A victim must visit attacker-controlled content and press a key or otherwise interact; saved address or payment data is additionally required for autofill-context disclosure.
Summary
What happened
UI spoofing in Mozilla Firefox before 113, Firefox ESR before 102.11, and Thunderbird before 102.11 allows remote attackers to mislead users. Carefully positioned input fields cause the autocomplete subsystem to open autofill panels outside the content-area constraint, covering address bars, permission prompts, window controls, or cross-origin popups. A victim must visit attacker-controlled content and press a key or otherwise interact; saved address or payment data is additionally required for autofill-context disclosure.
The record
- CVE
- CVE-2023-32205
- Published
- Jun 2, 2023
- Updated
- May 27, 2025
- Vendor
- Mozilla
- Product
- Firefox
- Classifications
- T1036
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 2, 2023CVE publishedPublication date reported by the CVE source.
- May 27, 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=unspecified <113
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.
Weakness, pattern, technique
Public exploit references
- Cross-origin autofill-overlay proof of conceptproof of concept · demonstrated
- Browser UI autofill-overlay proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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