Ruby on Rails 2.3.9 and 3.0.0 does not properly handle nested attributes, which allows remote attackers to modify arbitrary records by changing the names of parameters for form inputs.
CVE-2010-3933
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.4 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:N/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 2.2% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 6.4MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 6.4(low)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity64% × 45%Exploitation2% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 2%
- EPSS %ILE
- 81%
- KEV
- Not listed
Published
October 28, 2010
Last Modified
April 29, 2026
References (8)
- cve@mitrehttp://secunia.com/advisories/41930
- cve@mitrehttp://securitytracker.com/id?1024624
- cve@mitrehttp://weblog.rubyonrails.org/2010/10/15/security-vulnerability-in-nested-attributes-code-in-ruby-on-rails-2-3-9-and-3-0-0
- cve@mitrehttp://www.vupen.com/english/advisories/2010/2719
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/41930
- af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1024624
- af854a3a-2127-422b-91ae-364da2661108http://weblog.rubyonrails.org/2010/10/15/security-vulnerability-in-nested-attributes-code-in-ruby-on-rails-2-3-9-and-3-0-0
- af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2010/2719
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| activerecord | 3.0.0 | 3.0.1 | — |
Data Freshness Timeline
(refreshed 11× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-26 13:41 UTCEG score recompute▲ 6.40
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Frequently asked(4)
What is CVE-2010-3933?
When was CVE-2010-3933 disclosed?
Is CVE-2010-3933 actively exploited?
How do I remediate CVE-2010-3933?
Dependency Blast Radius
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