CVE-2025-6829 Overview
CVE-2025-6829 is a SQL injection vulnerability in the aaluoxiang oa_system office automation application. The flaw resides in the outAddress function of the External Address Book Handler component. Attackers can manipulate input parameters to inject arbitrary SQL statements into backend database queries. The vulnerability is remotely exploitable and requires low-level privileges to trigger. Because the project does not follow a formal versioning scheme, affected and patched releases cannot be enumerated; only the source tree state up to commit c3a08168c144f27256a90838492c713f55f1b207 is referenced. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Authenticated remote attackers can inject SQL through the External Address Book Handler, exposing or modifying backend database contents.
Affected Products
- aaluoxiang oa_system (source tree up to commit c3a08168c144f27256a90838492c713f55f1b207)
- Component: External Address Book Handler, function outAddress
- Product does not use versioning; specific release boundaries are not defined
Discovery Timeline
- 2025-06-28 - CVE-2025-6829 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-6829
Vulnerability Analysis
The vulnerability is a server-side SQL injection in the outAddress function of the External Address Book Handler. User-supplied input passed to this function is concatenated into a SQL query without proper neutralization. An authenticated remote attacker can submit crafted parameters to alter query semantics. Successful exploitation can result in unauthorized read or modification of address book records and potentially other database content accessible to the application's database user.
The attack vector is network-based and does not require user interaction. Privileges are limited to a low-level authenticated account. The EPSS score is 0.318% (percentile 23.459), indicating low observed exploitation likelihood at the time of writing. No public proof-of-concept exploit is listed in the references, and the issue is not present on the CISA Known Exploited Vulnerabilities catalog.
Root Cause
The outAddress function fails to use parameterized queries or input sanitization when constructing SQL statements from request parameters. Concatenation of untrusted data into the query string allows attacker-controlled SQL fragments to reach the database engine. This pattern is the canonical cause of injection flaws categorized under [CWE-74].
Attack Vector
An attacker authenticates to the oa_system application using any valid low-privilege account. The attacker then issues an HTTP request to the External Address Book endpoint that invokes outAddress. By injecting SQL metacharacters and clauses into the affected parameter, the attacker can read arbitrary tables, exfiltrate credentials, or modify records. See the GitHub Issue Discussion and VulDB #314267 entries for additional technical context.
Detection Methods for CVE-2025-6829
Indicators of Compromise
- HTTP requests to address book endpoints containing SQL metacharacters such as ', --, UNION SELECT, or OR 1=1
- Unexpected database error messages logged from the oa_system application during address book operations
- Application logs showing repeated calls to outAddress from a single authenticated session with anomalous parameter values
Detection Strategies
- Inspect web access logs for requests targeting the External Address Book Handler with encoded SQL syntax or unusually long query strings
- Enable database query logging and alert on queries originating from the oa_system web user that contain UNION, INFORMATION_SCHEMA, or stacked statements
- Deploy a Web Application Firewall (WAF) rule set tuned to flag SQL injection patterns on authenticated oa_system endpoints
Monitoring Recommendations
- Correlate authentication events with subsequent address book API calls to identify low-privilege accounts probing the outAddress function
- Monitor for sudden increases in database row reads or schema metadata queries originating from the application service account
- Forward web server, application, and database telemetry to a centralized analytics platform for cross-source correlation
How to Mitigate CVE-2025-6829
Immediate Actions Required
- Restrict network access to the oa_system application to trusted internal users until a fix is applied
- Audit and rotate credentials for low-privilege accounts that can reach the External Address Book Handler
- Apply least-privilege configuration to the database user the application authenticates as, limiting SELECT, UPDATE, and schema introspection rights
Patch Information
No vendor patch or upstream release is referenced in the advisory. The project does not use formal versioning, and no fixed commit is published. Track the upstream repository and the GitHub Issue Discussion for any remediation commits. Until a maintainer fix is available, operators should apply compensating controls or migrate off the affected component.
Workarounds
- Place the application behind a WAF with signatures for SQL injection targeting the address book endpoint
- Refactor the outAddress function locally to use parameterized queries or a prepared statement API instead of string concatenation
- Disable or restrict access to the External Address Book functionality if it is not required for business operations
- Enforce strict input validation on all parameters reaching the address book handler, rejecting non-alphanumeric characters where feasible
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
