CVE-2021-42567 — MEDIUM (6.1)

Q: What is CVE-2021-42567?

CVE-2021-42567 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.

Q: How severe is CVE-2021-42567?

CVE-2021-42567 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-2021-42567?

Check the references section above for vendor advisories and patch information. Affected products include: Apereo Central Authentication Service.

Vulnerability Description

Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.

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
Apereo	Central Authentication Service	>= 6.3.0, < 6.3.7.1

Related Weaknesses (CWE)

CWE-79

References

https://apereo.github.io/2021/10/18/restvuln/PatchThird Party Advisory
https://github.com/apereo/cas/releasesRelease NotesThird Party Advisory
https://apereo.github.io/2021/10/18/restvuln/PatchThird Party Advisory
https://github.com/apereo/cas/releasesRelease NotesThird Party Advisory

FAQ

What is CVE-2021-42567?

CVE-2021-42567 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.

How severe is CVE-2021-42567?

CVE-2021-42567 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-2021-42567?

Check the references section above for vendor advisories and patch information. Affected products include: Apereo Central Authentication Service.