CVE-2021-26293
CVSS v3
9.8
CRITICAL
EPSS Score
7.1 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2021-03-04
Frequently asked questions
What is 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.
Is CVE-2021-26293 actively exploited?
Active exploitation of CVE-2021-26293 has not been confirmed. Its EPSS score was 7.1% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-26293?
CVE-2021-26293 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-26293 affecting your environment?
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