CVE-2021-38927 | IBM Aspera Console cross-site scripting

IBM Aspera Console 3.4.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 210322.

Published: 2023-12-24 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-38927 is rated Low Risk (38.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.34%). 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-2021-38927

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 0.06% 0.34% +0.29%
2 2024-12-31 0.04% 0.06% +0.02%
3 2023-12-25 — 0.04% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-38927

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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: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: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.
 3.9 2.7 [email protected]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/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:N)
No account or special rights needed—anonymous or random user is enough.
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.
 2.8 2.7 [email protected]

Weakness enumeration for CVE-2021-38927

Affected software / configurations for CVE-2021-38927

Vendor Product Version Raw CPE
ibm aspera_console < 3.4.2 cpe:2.3:a:ibm:aspera_console:*:*:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:-:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:patch_level_1:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:patch_level_2:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:patch_level_3:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:patch_level_4:*:*:*:*:*:*
ibm aspera_console 3.4.2 cpe:2.3:a:ibm:aspera_console:3.4.2:patch_level_5:*:*:*:*:*:*

References for CVE-2021-38927

cvelogic Threat Intelligence