CVE-2021-43698
Published: 29 November 2021
Summary
CVE-2021-43698 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Phpwhois Project Phpwhois. Its CVSS base score is 6.1 (Medium).
Operationally, ranked at the 45.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-30605
Vulnerability details
phpWhois (last update Jun 30 2021) is affected by a Cross Site Scripting (XSS) vulnerability. In file example.php, the exit function will terminate the script and print the message to the user. The message will contain $_GET['query'] then there is…
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a XSS vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.