Risk Letters

Exploited vulnerability

CVE-2021-30134

TLP:CLEAR

php_curl_class_project php_curl_class Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

php-mod/curl (a wrapper of the PHP cURL extension) before 2.3.2 allows XSS via the post_file_path_upload.php key parameter and the POST data to post_multidimensional.php.

Facts

  • Vendor: php_curl_class_project
  • Product: php_curl_class
  • EPSS (probability of exploitation within 30 days): 1.3 %
  • First known exploitation: 21 September 2026
  • First seen by Risk Letters: 21 September 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD