What is the CVSS score of CVE-2023-33971?

CVE-2023-33971 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2023-33971?

Yes, a public proof-of-concept exploit is available for CVE-2023-33971. Prioritise patching immediately. EPSS: 0.6%.

Form Creator CVE-2023-33971

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2023-05-31 security-advisories@github.com

RCE XSS Form Creator

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

May 31, 2023 - 18:15 nvd

MEDIUM 5.4

DescriptionNVD

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.

AnalysisAI

Formcreator is a GLPI plugin which allow creation of custom forms and the creation of one or more tickets when the form is filled. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Teclib-Edition Form Creator.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.