loopus Cost Estimation & Payment Forms Builder Plugin up to 10.5.97 Form customerInfos cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in loopus Cost Estimation & Payment Forms Builder Plugin up to 10.5.97. The impacted element is an unknown function of the component Form Handler. This manipulation of the argument customerInfos causes cross site scripting. This vulnerability is tracked as CVE-2026-9253. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in loopus Cost Estimation & Payment Forms Builder Plugin up to 10.5.97. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Form Handler. The manipulation of the argument customerInfos with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

The WP Cost Estimation & Payment Forms Builder (E&P Forms) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'customerInfos' parameter in all versions up to, and including, 10.5.97 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-9253 since 05/21/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-42579). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• loopus

Name

• Cost Estimation & Payment Forms Builder Plugin

Version

• 10.5.0
• 10.5.1
• 10.5.2
• 10.5.3
• 10.5.4
• 10.5.5
• 10.5.6
• 10.5.7
• 10.5.8
• 10.5.9
• 10.5.10
• 10.5.11
• 10.5.12
• 10.5.13
• 10.5.14
• 10.5.15
• 10.5.16
• 10.5.17
• 10.5.18
• 10.5.19
• 10.5.20
• 10.5.21
• 10.5.22
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• 10.5.24
• 10.5.25
• 10.5.26
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• 10.5.29
• 10.5.30
• 10.5.31
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• 10.5.33
• 10.5.34
• 10.5.35
• 10.5.36
• 10.5.37
• 10.5.38
• 10.5.39
• 10.5.40
• 10.5.41
• 10.5.42
• 10.5.43
• 10.5.44
• 10.5.45
• 10.5.46
• 10.5.47
• 10.5.48
• 10.5.49
• 10.5.50
• 10.5.51
• 10.5.52
• 10.5.53
• 10.5.54
• 10.5.55
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• 10.5.57
• 10.5.58
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• 10.5.73
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• 10.5.75
• 10.5.76
• 10.5.77
• 10.5.78
• 10.5.79
• 10.5.80
• 10.5.81
• 10.5.82
• 10.5.83
• 10.5.84
• 10.5.85
• 10.5.86
• 10.5.87
• 10.5.88
• 10.5.89
• 10.5.90
• 10.5.91
• 10.5.92
• 10.5.93
• 10.5.94
• 10.5.95
• 10.5.96
• 10.5.97

CPE 2.3info

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Entryinfo

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

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