Vulnerability Details : CVE-2022-26497
Potential exploit
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2022-26497
- cpe:2.3:a:bigbluebutton:greenlight:2.11.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-26497
0.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-26497
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2022-26497
-
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.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-26497
-
http://packetstormsecurity.com/files/172143/Shannon-Baseband-acfg-pcfg-SDP-Attribute-Memory-Corruption.html
Shannon Baseband acfg / pcfg SDP Attribute Memory Corruption ≈ Packet Storm
-
https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352
greenlight/room.js at master · bigbluebutton/greenlight · GitHubExploit;Third Party Advisory
-
https://www.mgm-sp.com/en/cve-2022-26497-bigbluebutton-greenlight-xss/
CVE-2022-26497: BigBlueButton Greenlight XSSPatch;Third Party Advisory
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