gVectors wpDiscuz up to 7.6.46 class.WpdiscuzHelperAjax.php getLastInlineComments cross site scripting

Summaryinfo

A vulnerability was found in gVectors wpDiscuz up to 7.6.46. It has been classified as problematic. Affected is the function getLastInlineComments of the file class.WpdiscuzHelperAjax.php. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2026-22183. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in gVectors wpDiscuz up to 7.6.46 and classified as problematic. This issue affects the function getLastInlineComments of the file class.WpdiscuzHelperAjax.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

wpDiscuz before 7.6.47 contains a stored cross-site scripting vulnerability in the inline comment preview functionality that allows authenticated users to inject malicious scripts by submitting comments with unescaped content. Attackers with unfiltered_html capabilities can inject JavaScript directly through comment content rendered in the AJAX response from the getLastInlineComments() function in class.WpdiscuzHelperAjax.php without proper HTML escaping.

The weakness was shared by Scott Moore. The advisory is shared at wordpress.org. The identification of this vulnerability is CVE-2026-22183 since 01/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:class.WpdiscuzHelperAjax.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 7.6.47 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• gVectors

Name

• wpDiscuz

Version

• 7.6.0
• 7.6.1
• 7.6.2
• 7.6.3
• 7.6.4
• 7.6.5
• 7.6.6
• 7.6.7
• 7.6.8
• 7.6.9
• 7.6.10
• 7.6.11
• 7.6.12
• 7.6.13
• 7.6.14
• 7.6.15
• 7.6.16
• 7.6.17
• 7.6.18
• 7.6.19
• 7.6.20
• 7.6.21
• 7.6.22
• 7.6.23
• 7.6.24
• 7.6.25
• 7.6.26
• 7.6.27
• 7.6.28
• 7.6.29
• 7.6.30
• 7.6.31
• 7.6.32
• 7.6.33
• 7.6.34
• 7.6.35
• 7.6.36
• 7.6.37
• 7.6.38
• 7.6.39
• 7.6.40
• 7.6.41
• 7.6.42
• 7.6.43
• 7.6.44
• 7.6.45
• 7.6.46

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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