Executive brief
Open ISES Tickets, an open-source ticketing and incident management system, contained a hardcoded WhitePages API key within its public source code. This exposure allows anyone who views the code to use the key for their own reverse-phone lookups, potentially resulting in financial charges or service exhaustion for the original account owner. Organizations using affected versions should upgrade immediately to invalidate the exposed credential.
Technical details
A hardcoded WhitePages reverse-phone API key was discovered in the 'wp1.php' file of Open ISES Tickets versions prior to 3.44.2. Because this key was committed to a public version control repository, it is accessible to any actor with read access to the source tree. An attacker can extract this credential and perform API calls that are billed to or rate-limited against the legitimate owner's account. This vulnerability is classified as CWE-798 (Use of Hard-coded Credentials). The issue was remediated in version 3.44.2 by removing the secret from the codebase.
Affected products
- Open ISES Tickets before 3.44.2
Timeline
- 2026-04-01: patched: Fix committed to repository
- 2026-04-02: advisory: Release v3.44.2 published
- 2026-05-21: disclosed: CVE-2026-48243 published