CVE-2026-121451 Details
Description
AB Download Manager before 1.11.2 contains a cross-site request forgery vulnerability in its unauthenticated browser-integration API that allows remote attackers to write attacker-chosen files to arbitrary paths. A malicious web page can send a text/plain request to /start-headless-download with crafted folder and name values, placing payloads in startup folders for code execution on next login.
A cross-site request forgery (CSRF) vulnerability has been identified in AB Download Manager versions prior to 1.11.2. The issue resides within the unauthenticated browser-integration API, specifically the '/start-headless-download' endpoint. This vulnerability allows remote attackers to write files of their choosing to arbitrary paths on the victim's system. Exploitation can be achieved by sending a 'text/plain' request with crafted 'folder' and 'name' values, placing payloads in startup folders for execution during the next login.
Users can update to AB Download Manager version 1.11.2 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| AB Download Manager | >= 0, < 1.11.2 |
CPE
Remediation
| |
Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 3, 2026 | New CVE Received | [email protected] |