CVE-2020-1442
CVE-2020-1442 is a medium-severity vulnerability in Microsoft Office Online Server 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: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Microsoft Office Online Server
- Published:
- Last modified:
Description
A spoofing vulnerability exists when an Office Web Apps server does not properly sanitize a specially crafted request, aka 'Office Web Apps XSS Vulnerability'.
Frequently asked questions
- What is CVE-2020-1442?
- A spoofing vulnerability exists when an Office Web Apps server does not properly sanitize a specially crafted request, aka 'Office Web Apps XSS Vulnerability'.
- How severe is CVE-2020-1442?
- CVE-2020-1442 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-2020-1442 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-1442?
- CVE-2020-1442 primarily affects Microsoft Office Online Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-1442?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-1442 published?
- CVE-2020-1442 was published on 2020-07-14 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*
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