VulnerabilityModified
CVE-2022-26497
BigBlueButton Greenlight 2.11.1 allows XSS.
MEDIUM 5.4EPSS 0.85%
Does this matter?
Lower severity and a low EPSS score (0.85%). Track it; it rarely justifies an emergency change on its own.
Description
BigBlueButton Greenlight 2.11.1 allows XSS. A threat actor could have a username containing a JavaScript payload. The payload gets executed in the browser of the victim in the "Share room access" dialog if the victim has shared access to the particular room with the attacker previously.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.85% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- bigbluebutton/greenlight
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/172143/Shannon-Baseband-acfg-pcfg-SDP-Attribute-Memory-Corruption.html
- https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352Exploit, Third Party Advisory
- https://www.mgm-sp.com/en/cve-2022-26497-bigbluebutton-greenlight-xss/Patch, Third Party Advisory
- http://packetstormsecurity.com/files/172143/Shannon-Baseband-acfg-pcfg-SDP-Attribute-Memory-Corruption.html
- https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352Exploit, Third Party Advisory
- https://www.mgm-sp.com/en/cve-2022-26497-bigbluebutton-greenlight-xss/Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.