Stored XSS via forged unsanitized settings update
Published Feb 16, 2025 · Updated Apr 28, 2026
Stored XSS in what3words Address Field 4.0.15 and earlier allows remote attackers to inject scripts through a forged settings request. The settings update lacks effective nonce validation and persists text without adequate input sanitation for later display. An administrator must be authenticated and induced to open attacker-controlled content; script execution occurs when the stored value is subsequently rendered.
Summary
What happened
Stored XSS in what3words Address Field 4.0.15 and earlier allows remote attackers to inject scripts through a forged settings request. The settings update lacks effective nonce validation and persists text without adequate input sanitation for later display. An administrator must be authenticated and induced to open attacker-controlled content; script execution occurs when the stored value is subsequently rendered.
The record
- CVE
- CVE-2025-26768
- Published
- Feb 16, 2025
- Updated
- Apr 28, 2026
- Vendor
- what3words
- Product
- what3words Address Field
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 16, 2025CVE publishedPublication date reported by the CVE source.
- Apr 28, 2026Record 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=0 <=4.0.15 changes=[{"at":"4.0.16","status":"unaffected"}]
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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