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CVE-2021-4295

ONC code-validator-api XML CodeValidatorApiConfiguration.java vocabularyValidationConfigurations xml external entity reference

Medium5.5EPSS 0.78%
Published
Updated
Reserved
Assigned by
VulDB

Description

A vulnerability classified as problematic was found in ONC code-validator-api up to 1.0.30. This vulnerability affects the function vocabularyValidationConfigurations of the file src/main/java/org/sitenv/vocabularies/configuration/CodeValidatorApiConfiguration.java of the component XML Handler. The manipulation leads to xml external entity reference. Upgrading to version 1.0.31 is able to address this issue. The name of the patch is fbd8ea121755a2d3d116b13f235bc8b61d8449af. It is recommended to upgrade the affected component. VDB-217018 is the identifier assigned to this vulnerability.

Timeline

  1. ID reserved

    By VulDB

  2. Published

  3. · 19 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-4295, by who scored it
Scored byCVSSScoreVector
VulDBCNA (assigner)3.1Medium5.5CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
VulDBCNA (assigner)3.0Medium5.5CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVDNVD · Modified3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.78% · top 44% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • ONC · code-validator-api

    • affected 1.0.0
    • affected 1.0.1
    • affected 1.0.2
    • affected 1.0.3
    • affected 1.0.4
    • affected 1.0.5
    • affected 1.0.6
    • affected 1.0.7
    • affected 1.0.8
    • affected 1.0.9
    • affected 1.0.10
    • affected 1.0.11
    • affected 1.0.12
    • affected 1.0.13
    • affected 1.0.14
    • affected 1.0.15
    • affected 1.0.16
    • affected 1.0.17
    • affected 1.0.18
    • affected 1.0.19
    • affected 1.0.20
    • affected 1.0.21
    • affected 1.0.22
    • affected 1.0.23
    • affected 1.0.24
    • affected 1.0.25
    • affected 1.0.26
    • affected 1.0.27
    • affected 1.0.28
    • affected 1.0.29
    • affected 1.0.30

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .