CVE-2026-72748

AVideo contains an unauthenticated arbitrary file write vulnerability in the aVideoEncoderChunk.json.php endpoint that allows remote attackers to write up to 4 GB of arbitrary content to the server filesystem via HTTP PUT requests without authentication. Attackers can exhaust disk space causing denial of service, poison the video encoding pipeline, or chain this with local file inclusion to achieve remote code execution.

CVSS 4.0

6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS

1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-25)

CWE

CWE-306

Published

2026-08-11

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://github.com/WWBN/AVideo/commit/1b55a9b3c4911d2f31594ce2e60566c70c6b95e8
• https://github.com/WWBN/AVideo/security/advisories/GHSA-v7p7-jccx-h37c
• https://www.vulncheck.com/advisories/avideo-unauthenticated-arbitrary-file-write-via-avideoencoderchunk-json-php
• https://github.com/WWBN/AVideo/security/advisories/GHSA-v7p7-jccx-h37c

Check your stackJSON