transmission up to 4.1.1 WebUI/RPC clickjacking

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in transmission up to 4.1.1 and classified as problematic. This vulnerability affects unknown code of the component WebUI/RPC. Executing a manipulation can lead to clickjacking. This vulnerability appears as CVE-2026-38978. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in transmission up to 4.1.1. It has been declared as problematic. This vulnerability affects an unknown code of the component WebUI/RPC. The manipulation with an unknown input leads to a clickjacking vulnerability. The CWE definition for the vulnerability is CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. As an impact it is known to affect integrity. CVE summarizes:

transmission through 4.1.1 was found to have a clickjacking weakness in the browser-facing WebUI and RPC response paths.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-38978 since 04/06/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1566.003.

The vulnerability scanner Nessus provides a plugin with the ID 318778 (Fedora 43 : transmission (2026-893c99f61c)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 6b24c1c214ec6a44fa5fdff0ce7da6b16d8ecaa8 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (318778). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 5.3
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Clickjacking
CWE: CWE-451
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 318778
Nessus Name: Fedora 43 : transmission (2026-893c99f61c)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 6b24c1c214ec6a44fa5fdff0ce7da6b16d8ecaa8

Timelineinfo

04/06/2026 CVE reserved
06/02/2026 +57 days Advisory disclosed
06/02/2026 +0 days VulDB entry created
06/07/2026 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 8726
Status: Confirmed

CVE: CVE-2026-38978 (🔒)
GCVE (CVE): GCVE-0-2026-38978
GCVE (VulDB): GCVE-100-368008

Entryinfo

Created: 06/02/2026 19:36
Updated: 06/07/2026 19:56
Changes: 06/02/2026 19:36 (56), 06/05/2026 17:41 (2), 06/07/2026 19:56 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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