Risk Letters

Exploited vulnerability

CVE-2016-20101

TLP:CLEAR

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

Issuu Panel plugin for WordPress before 1.6.6 contains a PHP file inclusion vulnerability that allows unauthenticated attackers to include remote or local files through the 'abspath' parameter. Attackers can send GET requests to menu/documento/requests/ajax-docs.php with a crafted abspath value passed to require() to execute remote PHP code or include local files. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-20.

Facts

  • Vendor: Pedro Marcelo
  • Product: Issuu Panel
  • EPSS (probability of exploitation within 30 days): 0.4 %
  • First known exploitation: 20 October 2026
  • First seen by Risk Letters: 20 October 2026

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