CVE-2025-50866Public exploitNetwork attack vector

Reflected XSS via unencoded SQL error output

Published Jul 31, 2025 · Updated Jul 31, 2025

Reflected XSS in CloudClassroom-PHP-Project 1.0 allows remote attackers to execute script in a user's browser through the email field. postquerypublic.php concatenates email into SQL and, if insertion fails, prints the failed statement and database error into HTML without encoding. A victim must be induced to submit the crafted POST request; successful script execution shares the application's origin and supports session theft or phishing.

CVSS severity6.1
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

Reflected XSS in CloudClassroom-PHP-Project 1.0 allows remote attackers to execute script in a user's browser through the email field. postquerypublic.php concatenates email into SQL and, if insertion fails, prints the failed statement and database error into HTML without encoding. A victim must be induced to submit the crafted POST request; successful script execution shares the application's origin and supports session theft or phishing.

The record

CVE
CVE-2025-50866
Published
Jul 31, 2025
Updated
Jul 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 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

6.1CISA-ADPCVSS: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 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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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