CVE-2020-37077Public exploitNetwork attack vector

Administrative file disclosure via template path traversal

Published Feb 3, 2026 · Updated Feb 3, 2026

Path traversal in Booked Scheduler 2.7.7 allows remote authenticated users to read unauthorized files through the tn parameter. The manage_email_templates.php script accepts the tn email-template name without neutralizing path traversal sequences before file access. Administrative access is required, and disclosure is limited to files readable by the web-server process.

CVSS severity6.5
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Booked Scheduler 2.7.7 allows remote authenticated users to read unauthorized files through the tn parameter. The manage_email_templates.php script accepts the tn email-template name without neutralizing path traversal sequences before file access. Administrative access is required, and disclosure is limited to files readable by the web-server process.

The record

CVE
CVE-2020-37077
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Twinkle Toes Software
Product
Booked Scheduler
Classifications
CWE-22, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.7.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Twinkle Toes Software · Booked Schedulerversion=2.7.7

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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