What is CVE-2025-69771?

CVE-2025-69771 is a critical-severity vulnerability in Killergerbah Asbplayer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.6/10. Published 2026-02-25.

How severe is CVE-2025-69771?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Arbitrary file upload in Killergerbah Asbplayer

CVE-2025-69771

Cross-Site Scripting (XSS) vulnerability in the subtitle loading function of the asbplayer Chrome Extension version 1.14.0 allows attackers to execute arbitrary JavaScript in the context of the active streaming platform via a crafted .srt subtitle file. Because the script executes within the same-site context, it can bypass cross-origin restrictions, leading to unauthorized same-site API requests and session data exfiltration.

Vulnerability class: Unrestricted File Upload

EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Killergerbah Asbplayer
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2025-69771?: CVE-2025-69771 is a critical-severity vulnerability in Killergerbah Asbplayer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.6/10. Published 2026-02-25.
How severe is CVE-2025-69771?: Critical severity. CVSS v3 base score is 9.6 out of 10.