CVE-2021-28161
CVE-2021-28161 is a medium-severity vulnerability in Eclipse Theia with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Eclipse Theia
- Published:
- Last modified:
Description
In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.
Frequently asked questions
- What is CVE-2021-28161?
- In Eclipse Theia versions up to and including 1.8.0, in the debug console there is no HTML escaping, so arbitrary Javascript code can be injected.
- How severe is CVE-2021-28161?
- CVE-2021-28161 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-28161 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-28161?
- CVE-2021-28161 affects Eclipse Theia. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-28161?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-28161 published?
- CVE-2021-28161 was published on 2021-03-12 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*
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