CVE-2023-51319Public exploitNetwork attack vector

Code execution via unneutralized CSV formulas

Published Feb 20, 2025 · Updated Nov 4, 2025

CSV injection in PHPJabbers Bus Reservation System 1.1 allows remote attackers to execute code when a crafted CSV export is opened. The Languages section in System Options accepts crafted Label parameter values without neutralizing spreadsheet formula prefixes before writing them into the generated CSV file. Exploitation requires a user to open the export in formula-interpreting spreadsheet software, which then runs the injected formula in that user's context.

CVSS severity8.8
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSV injection in PHPJabbers Bus Reservation System 1.1 allows remote attackers to execute code when a crafted CSV export is opened. The Languages section in System Options accepts crafted Label parameter values without neutralizing spreadsheet formula prefixes before writing them into the generated CSV file. Exploitation requires a user to open the export in formula-interpreting spreadsheet software, which then runs the injected formula in that user's context.

The record

CVE
CVE-2023-51319
Published
Feb 20, 2025
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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-1236Improper Neutralization of Formula Elements in a CSV File
T1204.002User Execution: Malicious File

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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