CVE-2026-61728

CRITICAL CVSS 9.9 PoC Available
Published: 2026-10-30
Modified: 2026-10-30
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AI Threat Summary

CVE-2026-61728 is a critical vulnerability with a CVSS score of 9.9 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.

Description

SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. In affected snapshots preceding the respective 0.1.70 and 0.1.76 sink repairs, portal users, including `customer_user`, can submit stored markup through `POST /api/incidents/db_operations/alert/comment`. In `customer-portal/src/components/alerts/AlertDetails/AlertComment.vue`, `commentHtml` replaces newlines in `comment.comment` but passes the result to `v-html` without escaping or sanitizing HTML. When another user views the poisoned alert, stored script executes on the application origin; the same unsanitized rendering pattern affects server-stored SOC case, asset and health-check fields in `SocCaseNote.vue`, `SocCaseItem.vue`, `SocCaseAssetsItem.vue`, `SocAlertAssetsItem.vue` and `HealthcheckItem.vue`. The authentication store in `customer-portal/src/stores/auth.ts` persists both access and refresh tokens in JavaScript-readable storage, and `customer-portal/src/api/httpClient.ts` uses bearer headers rather than HttpOnly cookies. An injected script can steal both tokens, impersonate the viewer and obtain fresh tokens through `/auth/refresh`. If an analyst or administrator views the poisoned alert or case, this enables persistent privileged account takeover, cross-tenant data access, incident modification or deletion, and detection/response subversion. The health-check sink repair is first contained in version 0.1.70, while the comment and other SOC sink repairs are first contained in version 0.1.76. Version 0.1.76 is the provisional first release containing all observed repairs; grouped versus split CVE scope requires curator adjudication.

Attack Chain
1
Reconnaissance

Attacker scans for vulnerable versions using version banners or PoC scanners

2
Initial Access

Attacker triggers CVE-2026-61728 vulnerability with a crafted request or payload

3
Execution

Vulnerability exploited to perform unauthorized actions on the target system

4
Impact

Depending on vulnerability type, attacker achieves data access, service disruption, or code execution

MITRE ATT&CK Techniques
T1190 Exploit Public-Facing Application
Initial Access

Public-facing application vulnerability exploited for initial access

T1203 Exploitation for Client Execution
Execution

Vulnerability exploited to execute attacker-controlled code

Indicators of Compromise
Type Value Description
user_agent Mozilla/5.0 (compatible; exploit/1.0) Generic exploit scanner user agent pattern
url /api/vuln-endpoint?payload=<malicious> Exploit attempt against application endpoint — monitor access logs for anomalous params
Remediation
1. Apply vendor-supplied security patches immediately. 2. If patches are unavailable, apply recommended mitigations from the vendor advisory. 3. Enable WAF rules or IDS signatures to detect exploitation attempts. 4. Monitor logs for indicators of compromise listed above. 5. Implement network segmentation to limit blast radius if exploitation occurs. 6. Subscribe to vendor security advisories for this product.
Quick Facts
CVE ID CVE-2026-61728
CVSS Score 9.9
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published 2026-10-30
Exploited No
CISA KEV No
PoC Available
References
External Resources
NVD Entry BleepingComputer The Hacker News