What’s Vulnerable › Vulnerabilities

CVE-2021-28162

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-12 · updated 2026-06-17
• Weakness: CWE-830

Description

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.

Affected products

• Eclipse Foundation Eclipse Theia: through 0.16.0

References

• https://github.com/eclipse-theia/theia/issues/7283
• https://github.com/eclipse-theia/theia/issues/7283

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