XSS in Decidim
CVE-2023-34089
Decidim is a participatory democracy framework, written in Ruby on Rails, originally developed for the Barcelona City government online and offline participation website. The processes filter feature is susceptible to Cross-site scripting. This allows a remote attacker to execute JavaScript code in the context of a currently logged-in user. An attacker could use this vulnerability to make other users endorse or support proposals they have no intention of supporting or endorsing. The problem was patched in version 0.27.3 and 0.26.7.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Decidim — versions >= 0.14.0, < 0.26.7, >= 0.27.0, < 0.27.3
Weakness classification (CWE)
References
- github.com/decidim/decidim/security/advisories/GHSA-5652-92r9-3fx9 (Third Party Advisory)
- github.com/decidim/decidim/releases/tag/v0.26.6 (Release Notes)
- github.com/decidim/decidim/releases/tag/v0.27.3 (Release Notes)
Frequently asked questions
- What is CVE-2023-34089?
- CVE-2023-34089 is a high-severity vulnerability in Decidim, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2023-07-11.
- How severe is CVE-2023-34089?
- High severity. CVSS v3 base score is 8.1 out of 10.