9.6

CVE-2020-27224: eclipse theia Cross-site Scripting

CVSS: 9.6v3.1CriticalModified
AliasesGHSA-gcm9-cc3r-c6vj
Published 24-02-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-27224 is a critical (CVSS 9.6) Cross-site Scripting vulnerability in eclipse theia. EPSS estimates a 2.59% chance of exploitation in the next 30 days, higher than 85% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.6/10
010
Critical · v3.1 (NVD)
EPSS score
2.59%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference

Timeline

  1. 24-02-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

In Eclipse Theia versions up to and including 1.2.0, the Markdown Preview (@theia/preview), can be exploited to execute arbitrary code.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.59%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

0.00 pp

From 2.59% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • githubUnverified

    Theia

    Maturity: poc

  • referenceUnverified

    Exploit Reference (omespino.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

@theia1 product
  • preview< 1.3.0
Eclipse1 product
The eclipse foundation1 product

3 vendors · 3 products

References

5 links