Executive brief
Revive Adserver, a popular open-source ad serving platform, contains a security flaw in its administrative programming interface (API). An attacker with low-level access could bypass restrictions intended for administrators, potentially gaining unauthorized access to sensitive configuration or operational data. This could lead to unauthorized changes in advertising campaigns or exposure of internal system information.
Technical details
An improper access control vulnerability exists in the XML-RPC API of Revive Adserver version 6.0.7 and earlier. The root cause is found in the 'ox.login' method, which fails to invalidate session identifiers when an authentication attempt fails or encounters an error. While the API correctly returns an error message, it simultaneously issues a valid session ID cookie in the HTTP response headers. A remote attacker with basic credentials can capture this leaked session ID to authenticate as an administrator and perform subsequent API calls without further restriction. This vulnerability is tracked as CWE-284.
Affected products
- Revive Adserver 6.0.7 and earlier
Timeline
- 2026-06-26: advisory: NVD publication date