CVE-2026-121451

AB Download Manager before 1.11.2 Arbitrary File Write via /start-headless-download CSRF

Published Nov 3, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Amir1376
Amir1376 ab-download-manager
Vendors & Products Amir1376
Amir1376 ab-download-manager
Type Values Removed Values Added
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.
Title AB Download Manager before 1.11.2 Arbitrary File Write via /start-headless-download CSRF
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 9, 2026, 3:05 PM
Reserved
Nov 3, 2026, 12:33 PM
Status
Deferred
Published
Nov 3, 2026, 4:17 PM
Modified
Nov 9, 2026, 3:17 PM