CVE-2019-16676 — Plataformatec Simple Form has Incorrect Access Control in file_method? in lib/si

Plataformatec Simple Form has Incorrect Access Control in file_method? in lib/simple_form/form_builder.rb, because a user-supplied string is invoked as a method call.

01What is this vulnerability?

Plataformatec Simple Form has Incorrect Access Control in file_method? in lib/simple_form/form_builder.rb, because a user-supplied string is invoked as a method call.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-30T11:43:11.000Z
• Last modified: 2024-08-05T01:17:41.175Z

09References

• github.com — https://github.com/plataformatec/simple_form/commits/master
• github.com — https://github.com/plataformatec/simple_form/security/advisories/GHSA-r74q-gxcg-…
• blog.plataformatec.com.br — http://blog.plataformatec.com.br/2019/09/incorrect-access-control-in-simple-form…