What is CVE-2021-26293?

CVE-2021-26293 is a critical-severity vulnerability in Afterlogic Aurora, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-03-04.

How severe is CVE-2021-26293?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-26293 known to be exploited?

13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Afterlogic Aurora

CVE-2021-26293

An issue was discovered in AfterLogic Aurora through 8.5.3 and WebMail Pro through 8.5.3, when DAV is enabled. They allow directory traversal to create new files (such as an executable file under the web root). This is related to DAVServer.php in 8.x and DAV/Server.php in 7.x.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.071 (93.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-26293?: CVE-2021-26293 is a critical-severity vulnerability in Afterlogic Aurora, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-03-04.
How severe is CVE-2021-26293?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-26293 known to be exploited?: 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.