Is CVE-2020-13563 in the CISA KEV catalog?

No. CVE-2020-13563 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-13563?

CVE-2020-13563 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2020-13563?

CVE-2020-13563 has an EPSS score of 75.86% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2020-13563?

No published fix for CVE-2020-13563 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2020-13563

MEDIUMEPSS 99th pctl

6.1

CVSS v3

NVD

Description

A cross-site scripting vulnerability exists in the template functionality of phpGACL 3.3.7. A specially crafted HTTP request can lead to arbitrary JavaScript execution. An attacker can provide a crafted URL to trigger this vulnerability in the phpGACL template group_id parameter.

CWE-80 CWE-79Cross-Site Scripting (XSS)

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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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

75.86%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Exploit1

talosintelligence.com

Related Vulnerabilities

Other CWE-80 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-21145	Medium	4.8	78%	-	-
CVE-2020-13562	Medium	6.1	78%	-	-
CVE-2020-13965	Medium	6.1	77%	KEV	Fix
CVE-2020-13564	Medium	6.1	76%	-	-
CVE-2024-4439	High	7.2	71%	-	Fix
CVE-2025-30676	Medium	6.1	65%	-	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.