TripleLift postMessage video-bundle.js cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.29

Summaryinfo

A vulnerability, which was classified as problematic, was found in TripleLift. This impacts an unknown function of the file video-bundle.js of the component postMessage Handler. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-82019. The attack can be executed remotely. There is not any exploit available. This product is a managed service. It is not possible for users to maintain vulnerability countermeasures themselves.

Detailsinfo

A vulnerability was found in TripleLift (affected version not known). It has been classified as problematic. Affected is some unknown functionality of the file video-bundle.js of the component postMessage Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

TripleLift's ad rendering script (video-bundle.js) contains a DOM-based cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a publisher's domain by sending crafted postMessage payloads without origin validation. Attackers can cause a victim to visit an attacker-controlled page that sends malicious postMessage events to a publisher page running the ad script, enabling session hijacking and unauthorized DOM manipulation.

The advisory is available at hussein-mahmoud7.medium.com. This vulnerability is traded as CVE-2026-82019 since 08/27/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

This product is available as a managed service. Users are not able to maintain vulnerability countermeasures themselves.

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Productinfo

Name

Managed Service

  • yes

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

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

CNA Base Score: 4.2
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/27/2026 CVE reserved
09/14/2026 +18 days Advisory disclosed
09/14/2026 +0 days VulDB entry created
09/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hussein-mahmoud7.medium.com
Status: Not defined

CVE: CVE-2026-82019 (🔒)
GCVE (CVE): GCVE-0-2026-82019
GCVE (VulDB): GCVE-100-403566

Entryinfo

Created: 09/14/2026 16:53
Changes: 09/14/2026 16:53 (73)
Complete: 🔍
Cache ID: 216::103

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