CVE-2025-60312Network attack vector

Browser script execution via unsanitized Markdown preview

Published Oct 7, 2025 · Updated Oct 7, 2025

Cross-site scripting in Sourcecodester Markdown to HTML Converter 1.0 allows remote attackers to run script in a victim's browser. The conversion flow accepts HTML in the Markdown Input field and places the generated markup into the rendered preview without neutralizing executable elements. Exploitation requires a victim to process attacker-supplied input by clicking Convert to HTML, after which the payload runs with the preview page's browser privileges.

CVSS severity6.1
Medium
EPSS probability0.28%
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 Sourcecodester Markdown to HTML Converter 1.0 allows remote attackers to run script in a victim's browser. The conversion flow accepts HTML in the Markdown Input field and places the generated markup into the rendered preview without neutralizing executable elements. Exploitation requires a victim to process attacker-supplied input by clicking Convert to HTML, after which the payload runs with the preview page's browser privileges.

The record

CVE
CVE-2025-60312
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 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.

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')
T1059.007JavaScript/JScript

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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