BigBlueButton Greenlight 2.11.1 Share Room Access Username cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in BigBlueButton Greenlight 2.11.1. This affects an unknown function of the component Share Room Access Handler. The manipulation of the argument Username results in cross site scripting. This vulnerability is cataloged as CVE-2022-26497. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in BigBlueButton Greenlight 2.11.1. It has been classified as problematic. Affected is an unknown function of the component Share Room Access Handler. The manipulation of the argument username 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.

The weakness was shared 06/03/2022. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2022-26497 since 03/06/2022. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

The exploit is shared for download at packetstormsecurity.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-31055). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/06/2022 🔍
06/03/2022 +88 days 🔍
06/03/2022 +0 days 🔍
05/09/2026 +1436 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined

CVE: CVE-2022-26497 (🔍)
GCVE (CVE): GCVE-0-2022-26497
GCVE (VulDB): GCVE-100-201264
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/03/2022 14:28
Updated: 05/09/2026 20:47
Changes: 06/03/2022 14:28 (38), 06/08/2022 08:35 (1), 07/02/2024 00:46 (23), 05/01/2025 01:48 (3), 05/09/2026 20:47 (1)
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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