CVE-2026-121451
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductAmir1376 Ab-download-manager
PublishedNov 3, 2026
First seenNov 4, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- amir1376 ab-download-manager1.11.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| amir1376 ab-download-manager | v < 1.11.2 | 1.11.2 |
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