CVE-2021-37573

CVE-2021-37573 is a medium-severity vulnerability in Tiny Java Web Server Project Tiny Java Web 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

Description

A reflected cross-site scripting (XSS) vulnerability in the web server TTiny Java Web Server and Servlet Container (TJWS) <=1.115 allows an adversary to inject malicious code on the server's "404 Page not Found" error page

Frequently asked questions

What is CVE-2021-37573?
A reflected cross-site scripting (XSS) vulnerability in the web server TTiny Java Web Server and Servlet Container (TJWS) <=1.115 allows an adversary to inject malicious code on the server's "404 Page not Found" error page
How severe is CVE-2021-37573?
CVE-2021-37573 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-2021-37573 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37573?
CVE-2021-37573 affects Tiny Java Web Server Project Tiny Java Web Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37573?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-37573 published?
CVE-2021-37573 was published on 2021-08-09 and last updated on 2026-06-17.

References

Affected products (1)

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