What is CVE-2023-5337?

CVE-2023-5337 is a medium-severity vulnerability in Formforall Contact Form For All – Easy To Use, Fast, 37 Languages., classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2023-10-20.

How severe is CVE-2023-5337?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2023-5337 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Formforall Contact Form For All – Easy To Use, Fast, 37 Languages.

CVE-2023-5337

The Contact form Form For All plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'formforall' shortcode in versions up to, and including, 1.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Formforall Contact Form For All – Easy To Use, Fast, 37 Languages. — versions 0
Formforall

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Product, Third Party Advisory)
security@wordfence.com (Product)

Frequently asked questions

What is CVE-2023-5337?: CVE-2023-5337 is a medium-severity vulnerability in Formforall Contact Form For All – Easy To Use, Fast, 37 Languages., classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2023-10-20.
How severe is CVE-2023-5337?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2023-5337 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.