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CVE-2026-27732

AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

8.6 HighFix available

WWBN AVideo is an open source video platform. Prior to version 22.0, the aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.27%Up 0.2 points since Feb 25, 2026
90%50%10%1%

What each source reports

CVE List Score used8.6

AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

WWBN AVideo is an open source video platform. Prior to version 22.0, the aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.

Record
CVE-2026-27732
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-918
Updated
2026-11-02
EUVDEUVD-2026-85278.6

WWBN AVideo is an open source video platform. Prior to version 22.0, the aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.

Record
EUVD-2026-8527
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-h39h-7cvg-q7j68.6

AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

Vulnerability Type

Authenticated Server-Side Request Forgery (SSRF)

Affected Product/Versions

AVideo versions prior to 22 (tested on AVideo 21.x).

Root Cause Summary

The aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints).

Impact Summary

An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment.

Resolution/Fix

This issue has been fixed in AVideo version 22. Users should upgrade to version 22.0 as soon as possible.

Credits/Acknowledgement

Thanks to Arkadiusz Marta for responsibly reporting this issue.

Record
GHSA-h39h-7cvg-q7j6
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-918
Updated
2026-11-02
NVD8.6

WWBN AVideo is an open source video platform. Prior to version 22.0, the aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.

Record
CVE-2026-27732
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-918
Updated
2026-11-02
OSV8.6

AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

WWBN AVideo is an open source video platform. Prior to version 22.0, the aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.

Record
CVE-2026-27732
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-918
Updated
2026-11-02
OSVGHSA-h39h-7cvg-q7j68.6

AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

Vulnerability Type

Authenticated Server-Side Request Forgery (SSRF)

Affected Product/Versions

AVideo versions prior to 22 (tested on AVideo 21.x).

Root Cause Summary

The aVideoEncoder.json.php API endpoint accepts a downloadURL parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints).

Impact Summary

An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment.

Resolution/Fix

This issue has been fixed in AVideo version 22. Users should upgrade to version 22.0 as soon as possible.

Credits/Acknowledgement

Thanks to Arkadiusz Marta for responsibly reporting this issue.

Record
GHSA-h39h-7cvg-q7j6
CVSS 4.0
8.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-918
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wwbn/avideo
Packagist
through 21.0
22.0
wwbn/avideo
Packagist
before 22.0, plus listed versions
10.410.81111.111.1.1
Show 8 moreShow less
11.511.612.414.314.3.114.418.021.0
22.0

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-27732 is a high vulnerability (CVSS 8.6) in Wwbn Avideo, published February 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in wwbn/avideo 22.0.

References

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