CVE-2024-5312Network attack vector

Session-detail theft via unencoded test-script parameters

Published May 24, 2024 · Updated Aug 1, 2024

Cross-site scripting in PHP Server Monitor 3.2.0 allows remote attackers to steal session details through a crafted test-script URL. The bundled PHPMailer test_script/index.php page interpolates attacker-controlled form parameters into generated HTML without context-appropriate output encoding. Exploitation requires a victim to open the crafted URL, after which injected script executes in the application's origin and can expose session details.

CVSS severity6.3
Medium
EPSS probability0.27%
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 PHP Server Monitor 3.2.0 allows remote attackers to steal session details through a crafted test-script URL. The bundled PHPMailer test_script/index.php page interpolates attacker-controlled form parameters into generated HTML without context-appropriate output encoding. Exploitation requires a victim to open the crafted URL, after which injected script executes in the application's origin and can expose session details.

The record

CVE
CVE-2024-5312
Published
May 24, 2024
Updated
Aug 1, 2024
Vendor
PHP Server Monitor
Product
PHP Server Monitor
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=3,2,0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PHP Server Monitor · PHP Server Monitorversion=3,2,0

Published CVSS scores

6.3Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

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

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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