CVE-2021-26294

Exp

An issue was discovered in AfterLogic Aurora through 7.7.9 and WebMail Pro through 7.7.9. They allow directory traversal to read files (such as a data/settings/settings.xml file containing admin panel credentials), as demonstrated by dav/server.php/files/personal/%2e%2e when using the caldav_public_user account (with caldav_public_user as its password).

Published: 2021-03-07 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-26294 is rated High Exploit Risk (84.9/100): CVSS High severity, with high exploitation likelihood (EPSS 92.49%, 100th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +23.32% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-26294

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-26294

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 69.16% 92.49% +23.32%
2 2025-11-18 92.49% 69.16% -23.32%
3 2025-10-30 — 92.49% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-26294

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-26294

Affected software / configurations for CVE-2021-26294

Vendor Product Version Raw CPE
afterlogic aurora <= 7.7.9 cpe:2.3:a:afterlogic:aurora:*:*:*:*:*:*:*:*
afterlogic webmail_pro <= 7.7.9 cpe:2.3:a:afterlogic:webmail_pro:*:*:*:*:*:*:*:*

References for CVE-2021-26294

cvelogic Threat Intelligence