CVE-2020-13128
CVSS v3
7.5
HIGH
EPSS Score
1.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.
Technical details
- Published
- 2020-05-18
Frequently asked questions
What is CVE-2020-13128?
An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.
Is CVE-2020-13128 actively exploited?
Active exploitation of CVE-2020-13128 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-13128?
CVE-2020-13128 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2020-13128 affecting your environment?
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