CVE-2021-20784

CVE-2021-20784 is a medium-severity vulnerability in Voidtools Everything 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-644.

Key facts

Description

HTTP header injection vulnerability in Everything version 1.0, 1.1, and 1.2 except the Lite version may allow a remote attacker to inject an arbitrary script or alter the website that uses the product.

Frequently asked questions

What is CVE-2021-20784?
HTTP header injection vulnerability in Everything version 1.0, 1.1, and 1.2 except the Lite version may allow a remote attacker to inject an arbitrary script or alter the website that uses the product.
How severe is CVE-2021-20784?
CVE-2021-20784 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-2021-20784 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20784?
CVE-2021-20784 affects Voidtools Everything. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20784?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20784 published?
CVE-2021-20784 was published on 2021-07-14 and last updated on 2026-06-17.

References

Affected products (1)

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