Is CVE-2023-43643 in the CISA KEV catalog?

No. CVE-2023-43643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-43643?

CVE-2023-43643 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2023-43643?

CVE-2023-43643 has an EPSS score of 0.47% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-43643?

Upgrade libowasp-antisamy-java on debian 13 to 1.7.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-43643

MEDIUM

6.1

CVSS v3

NVD

Description

AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to version 1.7.4, there is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being sanitized. To be subject to this vulnerability the `preserveComments` directive must be enabled in your policy file and also allow for certain tags at the same time. As a result, certain crafty inputs can result in elements in comment tags being interpreted as executable when using AntiSamy's sanitized output. This issue has been patched in AntiSamy 1.7.4 and later.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

libowasp-antisamy-javaDebian

Fixed in:1.7.4-1CVE-2023-43643

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 RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.47%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Patch1

github.com

Exploit1

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.