CVE-2023-1367Public exploitNetwork attack vector

Stored script execution via unescaped view output

Published Mar 13, 2023 · Updated Feb 27, 2025

Stored code injection in Easy!Appointments before 1.5.0 allows remote attackers to execute browser scripts through crafted booking data. Multiple PHP views emit appointment, customer, service, user, and analytics values directly into HTML or JavaScript without the e() escape helper. Once crafted data reaches an affected view, script runs in the viewing user's browser and can act within that application session.

CVSS severity6.0
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored code injection in Easy!Appointments before 1.5.0 allows remote attackers to execute browser scripts through crafted booking data. Multiple PHP views emit appointment, customer, service, user, and analytics values directly into HTML or JavaScript without the e() escape helper. Once crafted data reaches an affected view, script runs in the viewing user's browser and can act within that application session.

The record

CVE
CVE-2023-1367
Published
Mar 13, 2023
Updated
Feb 27, 2025
Vendor
Alex Tselegidis
Product
Easy!Appointments
Classifications
CWE-94, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2025Record 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=unspecified <1.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alex Tselegidis · Easy!Appointmentsversion=unspecified <1.5.0

Published CVSS scores

6.0huntr.devCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L
3.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
7.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

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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