CVE-2023-40655Network attack vector

Browser script execution via undisclosed reflected input

Published Dec 14, 2023 · Updated Dec 4, 2024

Reflected XSS in mooj.org Proforms Basic 1.0.0 through 1.6.0 allows remote attackers to execute script via a crafted request. The CNA record does not disclose which Proforms Basic request parameter is reflected without context-appropriate output encoding. Exploitation requires a victim to follow a crafted link, enabling script execution in that victim's browser context and same-origin access.

CVSS severity6.1
Medium
EPSS probability0.40%
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 mooj.org Proforms Basic 1.0.0 through 1.6.0 allows remote attackers to execute script via a crafted request. The CNA record does not disclose which Proforms Basic request parameter is reflected without context-appropriate output encoding. Exploitation requires a victim to follow a crafted link, enabling script execution in that victim's browser context and same-origin access.

The record

CVE
CVE-2023-40655
Published
Dec 14, 2023
Updated
Dec 4, 2024
Vendor
mooj.org
Product
Proforms Basic
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 4, 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=1.0.0-1.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

mooj.org · Proforms Basicversion=1.0.0-1.6.0

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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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