Seeyon A6 OA Unauthenticated SQL Injection via downloadAtt.jsp (CVE-2015-20122) | HOL Guard CVE

High · CVSS 8.7CVE-2015-20122

Seeyon A6 OA Unauthenticated SQL Injection via downloadAtt.jsp

Answer in brief

CVE-2015-20122 records a High severity (CVSS 8.7) vulnerability in Seeyon A6 OA Unauthenticated SQL Injection via downloadAtt.jsp. The current sources do not mark it as known exploited. The current feed maps Yonyou/A6 OA (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 29, 2026Updated Sep 29, 2026Source checked Sep 29, 2026First seen by HOL Sep 29, 2026Material review Sep 29, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Yonyou/A6 OA (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Yonyou/A6 OAgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Yonyou/A6 OA.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 29, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.