CVE-2023-50630Public exploitNetwork attack vector

Stored XSS via unfiltered Markdown links

Published Jan 4, 2024 · Updated Apr 17, 2025

Stored cross-site scripting in xiweicheng TMS 2.28.0 allows remote attackers to run JavaScript when a recipient clicks a crafted Markdown link. The Markdown renderer accepts a javascript URI in link syntax, stores it in a message, and emits a clickable link without filtering the active scheme. A recipient must click the link; the script then runs in that recipient's TMS browser context and can issue same-origin requests with the recipient's session.

CVSS severity6.1
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in xiweicheng TMS 2.28.0 allows remote attackers to run JavaScript when a recipient clicks a crafted Markdown link. The Markdown renderer accepts a javascript URI in link syntax, stores it in a message, and emits a clickable link without filtering the active scheme. A recipient must click the link; the script then runs in that recipient's TMS browser context and can issue same-origin requests with the recipient's session.

The record

CVE
CVE-2023-50630
Published
Jan 4, 2024
Updated
Apr 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 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
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 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 exploitPublished

Weakness, pattern, technique

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

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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