CVE-2026-33483
PHP vulnerability analysis and mitigation

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.


SourceNVD

Related PHP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

GHSA-8q4h-8crm-5cvcHIGH8.9
  • PHPPHP
  • studio-42/elfinder
NoYesApr 17, 2026
CVE-2026-41143HIGH8.8
  • PHPPHP
  • yeswiki/yeswiki
NoYesApr 18, 2026
GHSA-qrr6-mg7r-m243HIGH7.8
  • PHPPHP
  • phpunit/phpunit
NoYesApr 18, 2026
CVE-2026-40479MEDIUM5.4
  • PHPPHP
  • kimai/kimai
NoYesApr 17, 2026
CVE-2026-40486MEDIUM4.3
  • PHPPHP
  • kimai/kimai
NoYesApr 17, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management