Cyber Resilience

CVE-2026-33479

RCE in Wwbn Avideo ≤ 26.0

Public PoCRCE
Published
23 March 2026
Modified
24 March 2026
Patch / advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0053 42th percentile
Risk Priority 64 floored blend · peak EPSS

Summary

CVE-2026-33479 is a high-severity Code Injection (CWE-94) vulnerability in Wwbn Avideo. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 42th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2026-33479 affects WWBN AVideo, an open source video platform, in versions up to and including 26.0. The vulnerability resides in the Gallery plugin's `saveSort.json.php` endpoint, which passes unsanitized user input from the `$_REQUEST['sections']` array values directly into PHP's `eval()` function, enabling code injection (CWE-94). The issue has a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H), indicating high severity due to its potential for significant impact.

An attacker can exploit this vulnerability via cross-site request forgery (CSRF), as the endpoint is protected only by `User::isAdmin()` authentication with no CSRF token validation. AVideo's explicit `SameSite=None` configuration on session cookies allows an attacker's malicious page to forge a request from an authenticated admin's browser when the admin visits the attacker-controlled site. This results in unauthenticated remote code execution on the server.

The GitHub security advisory (GHSA-xggw-g9pm-9qhh) and patch commit (087dab8841f8bdb54be184105ef19b47c5698fcb) detail the fix, which sanitizes the input before evaluation to prevent code injection. Security practitioners should update to a patched version beyond 26.0 and consider implementing CSRF protections on admin endpoints as a general best practice.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the Gallery plugin's `saveSort.json.php` endpoint passes unsanitized user input from `$_REQUEST['sections']` array values directly into PHP's `eval()` function. While the endpoint is gated behind `User::isAdmin()`,…

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it has no CSRF token validation. Combined with AVideo's explicit `SameSite=None` session cookie configuration, an attacker can exploit this via cross-site request forgery to achieve unauthenticated remote code execution — requiring only that an admin visits an attacker-controlled page. Commit 087dab8841f8bdb54be184105ef19b47c5698fcb contains a patch.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
T1059.002 AppleScript Execution
Adversaries may abuse AppleScript for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.005 Visual Basic Execution
Adversaries may abuse Visual Basic (VB) for execution.
T1059.006 Python Execution
Adversaries may abuse Python commands and scripts for execution.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-40911Same product: Wwbn Avideo
CVE-2024-31819Same product: Wwbn Avideo
CVE-2026-33648Same product: Wwbn Avideo
CVE-2026-45578Same product: Wwbn Avideo
CVE-2026-41064Same product: Wwbn Avideo
CVE-2022-30534Same product: Wwbn Avideo
CVE-2023-25313Same product: Wwbn Avideo
CVE-2026-33319Same product: Wwbn Avideo
CVE-2026-33482Same product: Wwbn Avideo
CVE-2023-30854Same product: Wwbn Avideo

Affected Assets

wwbn
avideo
≤ 26.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.3.1

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation finds code paths that accept and execute externally influenced strings.

Input validation directly stops untrusted data from being used to construct executable code without neutralization.

Least privilege limits the damage an injected code fragment can perform once executed.

Requiring documented secure development standards and tools enforces use of safe code-generation APIs and escaping.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly target injection flaws via secure coding and testing (mostly), yet as a single broad outcome it leaves many code-generation specifics unaddressed (partial).

PR.DS-10 none match
prevents

PR.DS-10 protects runtime data confidentiality/integrity but has no bearing on neutralizing externally influenced input during code generation, so neither direction shows any preventive effect.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Banning unapproved code samples and unauthenticated web services, combined with secure-coding standards and SAST, prevents the dynamic generation or inclusion of attacker-supplied code.

none

Controls that restrict unauthorized or malicious code from being introduced via external networks or removable media limit opportunities for an attacker to inject and execute arbitrary code.

References