Possible CSRF attack at questionnaire templates preview

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0031, the 24th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 15:16 UTC First seen by agentprime
2. 31 Oct 2026, 15:16 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-f3qm-vfc3-jg6v
• OSV: GHSA-f3qm-vfc3-jg6v
• github.com/decidim/decidim/security/advisories/GHSA-f3qm-vfc3-jg6v
• nvd.nist.gov/vuln/detail/CVE-2023-47635
• github.com/decidim/decidim/pull/11743
• github.com/decidim/decidim/pull/6247
• github.com/decidim/decidim/commit/5542227be66e3b6d7530f5b536069bce09376660
• github.com/decidim/decidim/commit/57a4b467787448307b5d9b01ce6e2c8502e121ac
• github.com/decidim/decidim
• github.com/decidim/decidim/blob/3187bdfd40ea1c57c2c12512b09a7fec0b2bed08/decidim-templates/app/controllers/decidim/templates/admin/questionnaire_templates_controller.rb#L11
• github.com/decidim/decidim/releases/tag/v0.27.5
• github.com/decidim/decidim/releases/tag/v0.28.0

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.