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CVE-2021-26293

An issue was discovered in AfterLogic Aurora through 8.5.3 and WebMail Pro through 8.5.3, when...

9.8 Critical

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

7.11%Up 6.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

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.

Record
CVE-2021-26293
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-22
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2021-26293
Updated
2026-11-02
EUVDEUVD-2021-13104 No score

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.

Record
EUVD-2021-13104
Updated
2026-11-03
GitHub AdvisoriesGHSA-77v9-4x76-g7mj No score

An issue was discovered in AfterLogic Aurora through 8.5.3 and WebMail Pro through 8.5.3, when...

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.

Record
GHSA-77v9-4x76-g7mj
Weakness
CWE-22
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-26293 is a critical vulnerability (CVSS 9.8) in Afterlogic Aurora, published March 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.11%, the 94th percentile. No source names a fixed version.

References

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