CVE-2024-13328Public exploitNetwork attack vector

Administrator-session script execution via reflected query parameter

Published Feb 4, 2025 · Updated Feb 4, 2025

Reflected XSS in tanng Giga Messenger – Express 2.3.1 and earlier allows remote attackers to run script in an administrator's browser. The wp-admin admin.php?page=giga route returns the _instance_id query parameter without sanitizing or escaping it before HTML output. Exploitation requires a high-privilege user to open a crafted URL, after which script runs in that user's WordPress session.

CVSS severity6.1
Medium
EPSS probability0.58%
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 tanng Giga Messenger – Express 2.3.1 and earlier allows remote attackers to run script in an administrator's browser. The wp-admin admin.php?page=giga route returns the _instance_id query parameter without sanitizing or escaping it before HTML output. Exploitation requires a high-privilege user to open a crafted URL, after which script runs in that user's WordPress session.

The record

CVE
CVE-2024-13328
Published
Feb 4, 2025
Updated
Feb 4, 2025
Vendor
tanng
Product
Giga Messenger – Express
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

tanng · Giga Messenger – Expressversion=0 <=2.3.1

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 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')
T1203Exploitation for Client Execution

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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