CVE-2021-27949 — MEDIUM (6.1)

Q: What is CVE-2021-27949?

CVE-2021-27949 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.

Q: How severe is CVE-2021-27949?

CVE-2021-27949 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-27949?

Check the references section above for vendor advisories and patch information. Affected products include: Mybb Mybb.

Vulnerability Description

Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.

CVSS Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Mybb	Mybb	< 1.8.26

Related Weaknesses (CWE)

CWE-79

References

https://github.com/mybb/mybb/security/advisories/GHSA-cmmr-39v8-8rx2PatchRelease NotesThird Party Advisory
https://github.com/mybb/mybb/security/advisories/GHSA-cmmr-39v8-8rx2PatchRelease NotesThird Party Advisory

FAQ

What is CVE-2021-27949?

CVE-2021-27949 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.

How severe is CVE-2021-27949?

CVE-2021-27949 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27949?

Check the references section above for vendor advisories and patch information. Affected products include: Mybb Mybb.