CVE-2023-40355

Cross Site Scripting (XSS) vulnerability in Axigen versions 10.3.3.0 before 10.3.3.59, 10.4.0 before 10.4.19, and 10.5.0 before 10.5.5, allows authenticated attackers to execute arbitrary code and obtain sensitive information via the logic for switching between the Standard and Ajax versions.

Published: 2024-02-07 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-40355 is rated Low Risk (37.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.09%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2023-40355

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 2026-06-15 15.98% 1.09% -14.89%
2 2026-06-09 13.47% 15.98% +2.51%
3 2026-05-02 13.47%

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-40355

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.3 2.7 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.3 2.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-40355

Affected software / configurations for CVE-2023-40355

Vendor Product Version Raw CPE
axigen axigen_mobile_webmail >= 10.3.3.0, < 10.3.3.59 cpe:2.3:a:axigen:axigen_mobile_webmail:*:*:*:*:*:*:*:*
axigen axigen_mobile_webmail >= 10.4.0, < 10.4.19 cpe:2.3:a:axigen:axigen_mobile_webmail:*:*:*:*:*:*:*:*
axigen axigen_mobile_webmail >= 10.5.0, < 10.5.5 cpe:2.3:a:axigen:axigen_mobile_webmail:*:*:*:*:*:*:*:*

References for CVE-2023-40355

cvelogic Threat Intelligence