CVE-2024-6704Network attack vector

Unauthenticated HTML injection via unfiltered comment content

Published Aug 2, 2024 · Updated Apr 8, 2026

HTML injection in wpDiscuz 7.6.21 and earlier allows remote attackers to place attacker-chosen markup in WordPress comments. The comment-processing path in class.WpdiscuzCore.php accepts comment content without filtering HTML tags when rich editing is disabled. Guest commenting and the simple editor must be available; injected hyperlinks persist in displayed comment content.

CVSS severity5.3
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in wpDiscuz 7.6.21 and earlier allows remote attackers to place attacker-chosen markup in WordPress comments. The comment-processing path in class.WpdiscuzCore.php accepts comment content without filtering HTML tags when rich editing is disabled. Guest commenting and the simple editor must be available; injected hyperlinks persist in displayed comment content.

The record

CVE
CVE-2024-6704
Published
Aug 2, 2024
Updated
Apr 8, 2026
Vendor
gVectors Team
Product
wpDiscuz
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=7.6.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

gVectors Team · wpDiscuzversion=0 <=7.6.21
AdvancedCoding · wpDiscuzversion=0 <=7.6.21

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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