XSS in Formtools Core
CVE-2021-38144
An issue was discovered in Form Tools through 3.0.20. A low-privileged user can trigger Reflected XSS when a viewing a form via the submission_id parameter, e.g., clients/forms/edit_submission.php?form_id=1&view_id=1&submission_id=[XSS].
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.formtools.org/ (Product, Vendor Advisory)
- github.com/formtools/core (Product, Third Party Advisory)
- bernardofsr.github.io/blog/2021/form-tools/ (Exploit, Third Party Advisory)
- github.com/bernardofsr/CVEs-With-PoC/blob/main/PoCs/Form Tools/README.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38144?
- CVE-2021-38144 is a medium-severity vulnerability in Formtools Core, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-31.
- How severe is CVE-2021-38144?
- Medium severity. CVSS v3 base score is 5.4 out of 10.