Seeyon A6 OA Unauthenticated SQL Injection via downloadAtt.jsp
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-20122
- 2026-10-03 Alias added: GHSA-jp76-j5hr-562v
References
Advisory 2
More Yonyou vulnerabilities
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- TI-2023-30648 Yonyou U8 Cloud Java Deserialization RCE via FileManageServlet CVSS 4.0CRITICAL 9.3
- TI-2026-63446 Yonyou KSOA search_list.jsp sql injection CVSS 4.0MEDIUM 6.9
- TI-2026-00906 Yonyou KSOA HTTP GET Parameter user_popedom.jsp sql injection CVSS 4.0MEDIUM 6.9
- TI-2026-00905 Yonyou KSOA HTTP GET Parameter select.jsp sql injection CVSS 4.0MEDIUM 6.9
Sources
- CVE-2015-20122 · CVE Program
- CVE-2015-20122 · NVD
- FIRST EPSS
- GHSA-jp76-j5hr-562v · GitHub Advisory Database · CC BY 4.0
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