CVE-2023-5140Network attack vector

Reflected script execution via unescaped date_start parameter

Published Nov 20, 2023 · Updated Aug 2, 2024

Reflected XSS in Computy Bonus for Woo before 5.8.3 allows remote attackers to execute scripts through a crafted date_start parameter. The plugin returns date_start in a WordPress page without sufficient input sanitization or context-appropriate output escaping. Exploitation requires a high-privilege user, such as an administrator, to follow a crafted link, causing the script to run in that user's browser context.

CVSS severity6.1
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Computy Bonus for Woo before 5.8.3 allows remote attackers to execute scripts through a crafted date_start parameter. The plugin returns date_start in a WordPress page without sufficient input sanitization or context-appropriate output escaping. Exploitation requires a high-privilege user, such as an administrator, to follow a crafted link, causing the script to run in that user's browser context.

The record

CVE
CVE-2023-5140
Published
Nov 20, 2023
Updated
Aug 2, 2024
Vendor
Computy
Product
Bonus for Woo
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 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=0 <5.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Computy · Bonus for Wooversion=0 <5.8.3

Published CVSS scores

6.1NIST NVDCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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