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CVE-2026-33237· NVD / CVE Program· CNA GitHub_M

AVideo has SSRF in Scheduler Plugin via callbackURL Missing `isSSRFSafeURL()` Validation

WWBN AVideo is an open source video platform. Prior to version 26.0, the Scheduler plugin's `run()` function in `plugin/Scheduler/Scheduler.php` calls `url_get_contents()` with an admin-configurable `callbackURL` that is validated only by `isValidURL()` (URL format check). Unlike other AVideo endpoints that were recently patched for SSRF (GHSA-9x67-f2v7-63rw, GHSA-h39h-7cvg-q7j6), the Scheduler's callback URL is never passed through `isSSRFSafeURL()`, which blocks requests to RFC-1918 private addresses, loopback, and cloud metadata endpoints. An admin can configure a scheduled task with an internal network `callbackURL` to perform SSRF against cloud infrastructure metadata services or internal APIs not otherwise reachable from the internet. Version 26.0 contains a patch for the issue.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Mar 20, 2026
Updated
Jun 17, 2026
EPSS
0.4% · 32th percentile
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Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
5.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
wwbnavideo

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wwbn avideobefore 26.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • WWBN AVideo

    • < 26.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistwwbn/avideobefore 26.026.0

Same product

wwbn: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-30547A directory traversal vulnerability exists in the unzipDirectory functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364.
    58Plan
  • CVE-2022-30534An OS command injection vulnerability exists in the aVideoEncoder chunkfile functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364
    57Plan
  • CVE-2022-30690A cross-site scripting (xss) vulnerability exists in the image403 functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364.
    49Plan
  • CVE-2024-31819An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute arbitrary code via the systemRootPath parameter of the sub
    44Plan
  • CVE-2026-33478AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
    43Plan
  • CVE-2022-32572An os command injection vulnerability exists in the aVideoEncoder wget functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364.
    42Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Packagist:wwbn/avideo26.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-333513 days apartAVideo has Unauthenticated SSRF via `webSiteRootURL` Parameter in saveDVR.json.php, Chaining to Verification Bypass
    36Monitor
  • CVE-2026-330390 days apartAVideo vulnerable to unauthenticated SSRF via HTTP redirect bypass in LiveLinks proxy
    34Monitor
  • CVE-2026-334803 days apartAVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated LiveLinks Proxy
    34Monitor
  • CVE-2026-2773224 days apartAVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php
    34Monitor
  • CVE-2026-335023 days apartAVideo has Unauthenticated SSRF via plugin/Live/test.php
    32Monitor
  • CVE-2026-4388452 days apartWWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-2909314 days apartWWBN AVideo: Unauthenticated PHP session store exposed to host network via published memcached port
    39Monitor
  • CVE-2025-3443493 days apartAVideo < 20.1 ImageGallery Plugin Unauthenticated File Upload and Deletion
    37Monitor
  • CVE-2020-3715837 days apartAVideo Platform 8.1 - Cross Site Request Forgery (Password Reset)
    34Monitor
  • CVE-2020-3717237 days apartAVideo Platform 8.1 - Cross Site Request Forgery (Password Reset)
    34Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-918 · Server-Side Request Forgery (SSRF)

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records