CVE-2021-33506

Name: CVE-2021-33506
Creator: NVD / NIST
Published: 2021-05-26T15:15:08.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2021-33506 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. jitsi-meet-prosody in Jitsi Meet before 2.0.5963-1 does not ensure that restrict_room_creation is set by default. This can allow an attacker to circumvent conference moderation.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

jitsi-meet-prosody in Jitsi Meet before 2.0.5963-1 does not ensure that restrict_room_creation is set by default. This can allow an attacker to circumvent conference moderation.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.17%

63.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
8x8	Jitsi Meet	< 2.0.5963

References

https://github.com/jitsi/jitsi-meet/compare/5025...5026Patch, Third Party Advisory
https://github.com/jitsi/jitsi-meet/pull/9252/filesPatch, Third Party Advisory
https://github.com/jitsi/security-advisories/blob/master/advisories/JSA-2021-0001.mdThird Party Advisory
https://github.com/jitsi/jitsi-meet/compare/5025...5026Patch, Third Party Advisory
https://github.com/jitsi/jitsi-meet/pull/9252/filesPatch, Third Party Advisory
https://github.com/jitsi/security-advisories/blob/master/advisories/JSA-2021-0001.mdThird Party Advisory

Timeline

Published: May 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33506?

jitsi-meet-prosody in Jitsi Meet before 2.0.5963-1 does not ensure that restrict_room_creation is set by default. This can allow an attacker to circumvent conference moderation.

How severe is CVE-2021-33506?

CVE-2021-33506 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33506?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33506?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST