CVE-2026-33483
HIGHAVideo Affected by Unauthenticated Disk Space Exhaustion via Unlimited Temp File Creation in aVideoEncoderChunk.json.php
Title source: cnaDescription
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `aVideoEncoderChunk.json.php` endpoint is a completely standalone PHP script with no authentication, no framework includes, and no resource limits. An unauthenticated remote attacker can send arbitrary POST data which is written to persistent temp files in `/tmp/` with no size cap, no rate limiting, and no cleanup mechanism. This allows trivial disk space exhaustion leading to denial of service of the entire server. Commit 33d1bae6c731ef1682fcdc47b428313be073a5d1 contains a patch.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/WWBN/AVideo/security/advisories/GHSA-vv7w-qf5c-734w
X_Refsource_Misc x_refsource_misc
https://github.com/WWBN/AVideo/commit/33d1bae6c731ef1682fcdc47b428313be073a5d1
Scores
CVSS v3
7.5
EPSS
0.0060
EPSS Percentile
44.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (3)
wwbn/avideo
< 26.0
wwbn/avideo
0Packagist
WWBN/AVideo
<= 26.0
Published
Mar 23, 2026
Tracked Since
Mar 23, 2026