BigBlueButton up to 3.0.12 GraphQL Mutation chatSendMessageReaction reactionEmojiId improper check or handling of exceptional conditions

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in BigBlueButton up to 3.0.12. Affected is the function chatSendMessageReaction of the component GraphQL Mutation Handler. The manipulation of the argument reactionEmojiId results in improper check or handling of exceptional conditions. This vulnerability is known as CVE-2025-61602. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in BigBlueButton up to 3.0.12. Affected is the function chatSendMessageReaction of the component GraphQL Mutation Handler. The manipulation of the argument reactionEmojiId with an unknown input leads to a improper check or handling of exceptional conditions vulnerability. CWE is classifying the issue as CWE-703. The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product. This is going to have an impact on availability. CVE summarizes:

BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-61602 since 09/26/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 3.0.13 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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

Exploitinginfo

Class: Improper check or handling of exceptional conditions
CWE: CWE-703
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BigBlueButton 3.0.13

Timelineinfo

09/26/2025 CVE reserved
10/09/2025 +13 days Advisory disclosed
10/09/2025 +0 days VulDB entry created
10/09/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-61602 (🔒)
GCVE (CVE): GCVE-0-2025-61602
GCVE (VulDB): GCVE-100-327810

Entryinfo

Created: 10/09/2025 23:06
Changes: 10/09/2025 23:06 (64)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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