CVE-2023-4111Public exploitNetwork attack vector

Browser script execution via unsanitized pickup_id output

Published Aug 3, 2023 · Updated Aug 2, 2024

Cross-site scripting in PHPJabbers Bus Reservation System 1.1 allows remote attackers to execute script in a victim's browser via pickup_id. The /index.php endpoint places the index/pickup_id value into generated page output without neutralizing executable markup. Exploitation requires no authentication but requires a user to open the crafted request, allowing browser-displayed content to be altered.

CVSS severity6.1
Medium
EPSS probability2.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in PHPJabbers Bus Reservation System 1.1 allows remote attackers to execute script in a victim's browser via pickup_id. The /index.php endpoint places the index/pickup_id value into generated page output without neutralizing executable markup. Exploitation requires no authentication but requires a user to open the crafted request, allowing browser-displayed content to be altered.

The record

CVE
CVE-2023-4111
Published
Aug 3, 2023
Updated
Aug 2, 2024
Vendor
PHPJabbers
Product
Bus Reservation System
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 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=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PHPJabbers · Bus Reservation Systemversion=1.1

Published CVSS scores

4.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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