Risk Letters

Exploited vulnerability

CVE-2015-20122

TLP:CLEAR

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Seeyon A6 collaborative office automation platform contains an unauthenticated SQL injection vulnerability in the attach_ids parameter of the file attachment download endpoint that allows remote attackers to extract arbitrary database contents without prior authentication. Attackers can inject UNION-based SQL statements through the attach_ids request parameter in downloadAtt.jsp to retrieve sensitive information including credentials and system configuration data. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-17.

Facts

  • Vendor: Yonyou
  • Product: A6 OA
  • EPSS (probability of exploitation within 30 days): 0.5 %
  • First known exploitation: 29 September 2026
  • First seen by Risk Letters: 29 September 2026

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