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CVE-2020-13564

55
FAUCET Score

CVE-2020-13564 is a cross-site scripting (XSS) vulnerability in the template functionality of phpGACL 3.3.7, affecting products like OpenEMR. An unauthenticated attacker can exploit this by crafting a malicious URL, leading to arbitrary JavaScript execution in the victim's browser. With a CVSS score of 6.1 (Medium), this vulnerability is easily exploitable over the network with low attack complexity, potentially resulting in limited impact to confidentiality and integrity. There is no evidence of active exploitation, nor are public exploit tools like Metasploit or Nuclei modules available, and it has received no significant community or media attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.3.7CPE matchmatch criteria
cpe:2.3:a:phpgacl_project:phpgacl:3.3.7:*:*:*:*:*:*:*
5.0.2CPE matchmatch criteria
cpe:2.3:a:open-emr:openemr:5.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.6CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
75.86%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.7586 is in the 100th percentile among its peer group of 26,221 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2020-1177
ExploitThird Party Advisory