CVE-2021-21707 (GCVE-0-2021-21707)

Vulnerability from cvelistv5 – Published: 2021-11-29 06:25 – Updated: 2024-09-17 03:38
VLAI
Title
Special characters break path parsing in XML functions
Summary
In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-159 - Failure to Sanitize Special Element
Assigner
php
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 7.3.x , < 7.3.33 (custom)
Affected: 7.4.x , < 7.4.26 (custom)
Affected: 8.0.X , < 8.0.13 (custom)
Create a notification for this product.
Date Public
2021-11-15 00:00
Credits
Reported by rawataman6525 at gmail dot com
Show details on NVD website
To clipboard 

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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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