CVE-2026-85177: CRMEB through 6.0.0 Unauthorized Message Modification via edit_message
CRMEB through 6.0.0 fails to validate message ownership in the editmessage handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including isdel, look, and uid to delete, mark read, or reassign victim notifications without authorization.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
CRMEBto a version that resolves this vulnerability.Fixed in 6.0.0 - Compensating control
Restrict access to the CRMEB MessageSystemController.php edit_message endpoint to authorized roles/users only until the fix is applied.
Event History
Frequently Asked Questions
What level of access does an attacker need?
An attacker needs an authenticated account with low privileges. The vulnerability is network-accessible and does not require user interaction.
Which security properties are affected?
The reported impact is limited to integrity and availability; no confidentiality impact is indicated. An attacker can alter message fields to delete notifications, mark them as read, or reassign them to another user.
Which versions should be considered in scope?
CRMEB versions through 6.0.0 are identified as affected.