CVE-2023-33971 - CVE House

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Status published Medium CVE-2023-33971

Formcreator vulnerable to stored XSS from ##FULLFORM##

6.1 CVSS

Vulnerability Description

Formcreator is a GLPI plugin which allow creation of custom forms and the creation of one or more tickets when the form is filled. A probable stored cross-site scripting vulnerability is present in Formcreator 2.13.5 and prior via the use of the use of `##FULLFORM##` for rendering. This could result in arbitrary javascript code execution in an admin/tech context. A patch is unavailable as of time of publication. As a workaround, one may use a regular expression to remove `< > "` in all fields.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

https://github.com/pluginsGLPI/formcreator/security/advisories/GHSA-777g-3848-8r3g

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Affected Vendor

pluginsGLPI

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Affected Software

formcreator

Vulnerable Versions:

<= 2.13.5

Timeline

Official Publish: May 31st, 2023

Last Modified: January 9th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement