How severe is CVE-2020-13564?

CVE-2020-13564 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-2020-13564 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13564?

CVE-2020-13564 primarily affects Phpgacl Project Phpgacl. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-13564?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-13564 published?

CVE-2020-13564 was published on 2021-02-01 and last updated on 2026-06-17.

CVE-2020-13564

CVE-2020-13564 is a medium-severity vulnerability in Phpgacl Project Phpgacl with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 76% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 76% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phpgacl Project Phpgacl
Published: 2021-02-01
Last modified: 2026-06-17

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 acl_id parameter.

Frequently asked questions

What is CVE-2020-13564?: 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 acl_id parameter.
How severe is CVE-2020-13564?: CVE-2020-13564 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-2020-13564 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13564?: CVE-2020-13564 primarily affects Phpgacl Project Phpgacl. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-13564?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13564 published?: CVE-2020-13564 was published on 2021-02-01 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1177

Affected products (2)

cpe:2.3:a:phpgacl_project:phpgacl:3.3.7:*:*:*:*:*:*:*
cpe:2.3:a:open-emr:openemr:5.0.2:*:*:*:*:*:*:*

More vulnerabilities in Phpgacl Project Phpgacl

CVE-2020-13567 — Critical (CVSS 9.8): Multiple SQL injection vulnerabilities exist in phpGACL 3.3.7. A specially crafted HTTP request can lead to a SQL…
CVE-2020-13568 — High (CVSS 8.8): SQL injection vulnerability exists in phpGACL 3.3.7. A specially crafted HTTP request can lead to a SQL injection. An…
CVE-2020-13566 — High (CVSS 8.8): SQL injection vulnerabilities exist in phpGACL 3.3.7. A specially crafted HTTP request can lead to a SQL injection. An…
CVE-2020-13565 — Medium (CVSS 6.1): An open redirect vulnerability exists in the return_page redirection functionality of phpGACL 3.3.7, OpenEMR 5.0.2 and…
CVE-2020-13563 — Medium (CVSS 6.1): A cross-site scripting vulnerability exists in the template functionality of phpGACL 3.3.7. A specially crafted HTTP…
CVE-2020-13562 — Medium (CVSS 6.1): A cross-site scripting vulnerability exists in the template functionality of phpGACL 3.3.7. A specially crafted HTTP…

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