CVE-2023-2740Public exploitNetwork attack vector

Browser script execution via unescaped name parameter

Published May 16, 2023 · Updated Aug 2, 2024

Reflected cross-site scripting in SourceCodester Guest Management System 1.0 allows remote attackers to execute browser script via the name parameter. dateTest.php inserts the GET name value into the response without neutralizing HTML or script syntax, so a crafted URL executes in the page origin. Exploitation requires a user to open the crafted URL and can expose browser-accessible session data or perform actions allowed by that origin.

CVSS severity6.1
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected cross-site scripting in SourceCodester Guest Management System 1.0 allows remote attackers to execute browser script via the name parameter. dateTest.php inserts the GET name value into the response without neutralizing HTML or script syntax, so a crafted URL executes in the page origin. Exploitation requires a user to open the crafted URL and can expose browser-accessible session data or perform actions allowed by that origin.

The record

CVE
CVE-2023-2740
Published
May 16, 2023
Updated
Aug 2, 2024
Vendor
SourceCodester
Product
Guest Management System
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SourceCodester · Guest Management Systemversion=1.0

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79CWE-79 Cross Site Scripting
T1189Drive-by Compromise

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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