CVE-2021-46875

An issue was discovered in eZ Platform Ibexa Kernel before 1.3.1.1. An XSS attack can occur because JavaScript code can be uploaded in a .html or .js file.

Published: 2023-03-12 Last update: 2025-03-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-46875 is rated Moderate Risk (47.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.54%). Review affected assets and schedule remediation.

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-2021-46875

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 2026-03-17 0.67% 0.54% -0.13%
2 2026-03-14 0.48% 0.67% +0.19%
3 2025-12-05 — 0.48% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-46875

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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]
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 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2021-46875

GitHub Security Advisory for CVE-2021-46875

GHSA-mrvj-7q4f-5p42 · Severity: high · Ecosystem: composer — Cross-site scripting in eZ Platform Kernel

Affected software / configurations for CVE-2021-46875

Vendor Product Version Raw CPE
ibexa ez_platform_kernel >= 1.2.0, < 1.2.5.1 cpe:2.3:o:ibexa:ez_platform_kernel:*:*:*:*:*:*:*:*
ibexa ez_platform_kernel >= 1.3.0, < 1.3.1.1 cpe:2.3:o:ibexa:ez_platform_kernel:*:*:*:*:*:*:*:*
ibexa ez_platform_kernel >= 6.13.0, < 6.13.8.2 cpe:2.3:o:ibexa:ez_platform_kernel:*:*:*:*:*:*:*:*
ibexa ez_platform_kernel >= 7.5.0, < 7.5.15.2 cpe:2.3:o:ibexa:ez_platform_kernel:*:*:*:*:*:*:*:*

References for CVE-2021-46875

cvelogic Threat Intelligence