Is CVE-2022-21690 in the CISA KEV catalog?

No. CVE-2022-21690 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21690?

CVE-2022-21690 has a CVSS v3 base score of 8.7 (HIGH).

What is the EPSS score for CVE-2022-21690?

CVE-2022-21690 has an EPSS score of 0.79% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21690?

Upgrade onionshare on debian 11 to 2.2-3+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2022-21690

HIGH

8.7

CVSS v3

NVD

Description

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions The path parameter of the requested URL is not sanitized before being passed to the QT frontend. This path is used in all components for displaying the server access history. This leads to a rendered HTML4 Subset (QT RichText editor) in the Onionshare frontend.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

onionshareDebian

Fixed in:2.2-3+deb11u1CVE-2022-21690

Fixed in:2.5-1CVE-2022-21690

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Exploit Intelligence

0.79%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.