CVE-2023-0520Public exploitNetwork attack vector

Browser script execution via unescaped URL parameter

Published May 15, 2023 · Updated Jan 24, 2025

Stored XSS in RapidExpCart 1.0 and earlier allows remote attackers to inject script through the rapidexpcart endpoint. The endpoint stores the url parameter without sanitizing it and later writes the value into a page without output escaping. Missing CSRF protection lets a forged form supply the payload when a logged-in administrator acts, causing the script to run in users' browsers.

CVSS severity5.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in RapidExpCart 1.0 and earlier allows remote attackers to inject script through the rapidexpcart endpoint. The endpoint stores the url parameter without sanitizing it and later writes the value into a page without output escaping. Missing CSRF protection lets a forged form supply the payload when a logged-in administrator acts, causing the script to run in users' browsers.

The record

CVE
CVE-2023-0520
Published
May 15, 2023
Updated
Jan 24, 2025
Vendor
RapidExp
Product
RapidExpCart
Classifications
CWE-352, CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 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=0 <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

RapidExp · RapidExpCartversion=0 <=1.0

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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-352Cross-Site Request Forgery (CSRF)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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