How severe is CVE-2020-13562?

CVE-2020-13562 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-2020-13562 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 78% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13562?

CVE-2020-13562 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-2020-13562?

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

When was CVE-2020-13562 published?

CVE-2020-13562 was published on 2021-02-01 and last updated on 2026-06-17.

CVE-2020-13562

CVE-2020-13562 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 78% places it in the 100th 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: 78% (100th 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 vulnaerability in the phpGACL template action parameter.

Frequently asked questions

What is CVE-2020-13562?: 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 vulnaerability in the phpGACL template action parameter.
How severe is CVE-2020-13562?: CVE-2020-13562 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-2020-13562 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 78% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13562?: CVE-2020-13562 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-2020-13562?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13562 published?: CVE-2020-13562 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-2020-13564 — Medium (CVSS 6.1): A cross-site scripting vulnerability exists in the template functionality of phpGACL 3.3.7. A specially crafted HTTP…
CVE-2020-13563 — 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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