Is CVE-2021-32792 in the CISA KEV catalog?

No. CVE-2021-32792 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-32792?

CVE-2021-32792 has a CVSS v3 base score of 3.1 (LOW).

What is the EPSS score for CVE-2021-32792?

CVE-2021-32792 has an EPSS score of 1.52% (72th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-32792?

Upgrade libapache2-mod-auth-openidc on debian 11 to 2.4.9-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-32792

LOWEPSS 72th pctl

3.1

CVSS v3

NVD

Description

mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In mod_auth_openidc before version 2.4.9, there is an XSS vulnerability in when using `OIDCPreservePost On`.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

libapache2-mod-auth-openidcDebian

Fixed in:2.4.9-1CVE-2021-32792

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 ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.52%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Patch4

Third-Party Advisory1

github.com

Other references3

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.