CVE-2021-28162

mediumpriority · track · 24EPSS 0.008 · 56 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.78% (56th) EPSS

CVSS 4.3 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-26

In Eclipse Theia versions up to and including 0.16.0, in the notification messages there is no HTML escaping, so Javascript code can run.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-829USprimaryCWE-829USCWE-830US

affected products (3)

Products and version ranges known to be affected.

The Eclipse Foundation Eclipse Theia≤ unspecified ≤0.16.0enisa_euvdEU
eclipse theia≤ 0.16.0nvdUScpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*
npm @theia/messages< 1.0.0osvUSpkg:npm/%40theia/messages

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-c94v-8fff-73phCommand Injection in @theia/messages2021-05-10ghsa · osvUS
In Eclipse Theia versions up to and including 0.16.0, in the notification messages there is no HTML escaping, so Javascript code can run.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-03-12modified 2026-06-17

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+453 more

references (5)

External citations — patches, advisories, analysis.

https://github.com/eclipse-theia/theiaPatchcnnvd
https://github.com/eclipse-theia/theia/issues/7283 cnnvd
https://nvd.nist.gov/vuln/detail/CVE-2021-28162 cnnvd
https://github.com/eclipse-theia/theia/issues/7283 enisa_euvd
https://github.com/eclipse-theia/theia/issues/7283ExploitIssue TrackingThird Party Advisorynvd

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