CVE-2015-7577

activerecord/lib/active_record/nested_attributes.rb in Active Record in Ruby on Rails 3.1.x and 3.2.x before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not properly implement a certain destroy option, which allows remote attackers to bypass intended change restrictions by leveraging use of the nested attributes feature.

Published: 2016-02-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-7577 is rated Moderate Risk (55.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.25%). EPSS rose +3.04% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-7577

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.21% 4.25% +3.04%
2 2026-03-04 1.30% 1.21% -0.09%
3 2026-03-01 — 1.30% —

Full EPSS history (37 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-7577

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-7577

GitHub Security Advisory for CVE-2015-7577

GHSA-xrr6-3pc4-m447 · Severity: medium · Ecosystem: rubygems — Active Record Improper Access Control

OS Trackers for CVE-2015-7577

vendor priority summary link
debian not yet assigned CVE-2015-7577 not yet assigned priority: Debian including 1 source packages (rails), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-7577
redhat medium — https://access.redhat.com/security/cve/CVE-2015-7577
suse medium CVE-2015-7577 severity moderate: SUSE including 15 source package names (libcontainment-insomnia-0.1.1-0.9.4.19, libjansson4-2.2.1-0.9.11.6, …), 30 product×package rows across 9 product lines (SUSE Enterprise Storage 2.1, SUSE Lifecycle Management Server 1.3, … (9 product lines)): Fixed 30. https://www.suse.com/security/cve/CVE-2015-7577/
ubuntu medium CVE-2015-7577 medium priority: Ubuntu including 10 source packages (rails, rails-4.0, …), 120 status rows across 12 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): DNE 96, not-affected 11, ignored 8, released 3, needed 2. https://ubuntu.com/security/CVE-2015-7577

Affected software / configurations for CVE-2015-7577

Vendor Product Version Raw CPE
rubyonrails rails 4.0.0 cpe:2.3:a:rubyonrails:rails:4.0.0:-:*:*:*:*:*:*
rubyonrails rails 4.0.0 cpe:2.3:a:rubyonrails:rails:4.0.0:beta:*:*:*:*:*:*
rubyonrails rails 4.0.0 cpe:2.3:a:rubyonrails:rails:4.0.0:rc1:*:*:*:*:*:*
rubyonrails rails 4.0.0 cpe:2.3:a:rubyonrails:rails:4.0.0:rc2:*:*:*:*:*:*
rubyonrails rails 4.0.1 cpe:2.3:a:rubyonrails:rails:4.0.1:-:*:*:*:*:*:*
rubyonrails rails 4.0.1 cpe:2.3:a:rubyonrails:rails:4.0.1:rc1:*:*:*:*:*:*
rubyonrails rails 4.0.1 cpe:2.3:a:rubyonrails:rails:4.0.1:rc2:*:*:*:*:*:*
rubyonrails rails 4.0.1 cpe:2.3:a:rubyonrails:rails:4.0.1:rc3:*:*:*:*:*:*
rubyonrails rails 4.0.1 cpe:2.3:a:rubyonrails:rails:4.0.1:rc4:*:*:*:*:*:*
rubyonrails rails 4.0.2 cpe:2.3:a:rubyonrails:rails:4.0.2:*:*:*:*:*:*:*
rubyonrails rails 4.0.3 cpe:2.3:a:rubyonrails:rails:4.0.3:*:*:*:*:*:*:*
rubyonrails rails 4.0.4 cpe:2.3:a:rubyonrails:rails:4.0.4:*:*:*:*:*:*:*
rubyonrails rails 4.0.4 cpe:2.3:a:rubyonrails:rails:4.0.4:rc1:*:*:*:*:*:*
rubyonrails rails 4.0.5 cpe:2.3:a:rubyonrails:rails:4.0.5:*:*:*:*:*:*:*
rubyonrails rails 4.0.6 cpe:2.3:a:rubyonrails:rails:4.0.6:*:*:*:*:*:*:*
rubyonrails rails 4.0.6 cpe:2.3:a:rubyonrails:rails:4.0.6:rc1:*:*:*:*:*:*
rubyonrails rails 4.0.6 cpe:2.3:a:rubyonrails:rails:4.0.6:rc2:*:*:*:*:*:*
rubyonrails rails 4.0.6 cpe:2.3:a:rubyonrails:rails:4.0.6:rc3:*:*:*:*:*:*
rubyonrails rails 4.0.7 cpe:2.3:a:rubyonrails:rails:4.0.7:*:*:*:*:*:*:*
rubyonrails rails 4.0.8 cpe:2.3:a:rubyonrails:rails:4.0.8:*:*:*:*:*:*:*
rubyonrails rails 4.0.9 cpe:2.3:a:rubyonrails:rails:4.0.9:*:*:*:*:*:*:*
rubyonrails rails 4.0.10 cpe:2.3:a:rubyonrails:rails:4.0.10:*:*:*:*:*:*:*
rubyonrails rails 4.0.10 cpe:2.3:a:rubyonrails:rails:4.0.10:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.0 cpe:2.3:a:rubyonrails:rails:4.1.0:-:*:*:*:*:*:*
rubyonrails rails 4.1.0 cpe:2.3:a:rubyonrails:rails:4.1.0:beta1:*:*:*:*:*:*
rubyonrails rails 4.1.0 cpe:2.3:a:rubyonrails:rails:4.1.0:beta2:*:*:*:*:*:*
rubyonrails rails 4.1.0 cpe:2.3:a:rubyonrails:rails:4.1.0:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.0 cpe:2.3:a:rubyonrails:rails:4.1.0:rc2:*:*:*:*:*:*
rubyonrails rails 4.1.1 cpe:2.3:a:rubyonrails:rails:4.1.1:*:*:*:*:*:*:*
rubyonrails rails 4.1.2 cpe:2.3:a:rubyonrails:rails:4.1.2:*:*:*:*:*:*:*
rubyonrails rails 4.1.2 cpe:2.3:a:rubyonrails:rails:4.1.2:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.2 cpe:2.3:a:rubyonrails:rails:4.1.2:rc2:*:*:*:*:*:*
rubyonrails rails 4.1.2 cpe:2.3:a:rubyonrails:rails:4.1.2:rc3:*:*:*:*:*:*
rubyonrails rails 4.1.3 cpe:2.3:a:rubyonrails:rails:4.1.3:*:*:*:*:*:*:*
rubyonrails rails 4.1.4 cpe:2.3:a:rubyonrails:rails:4.1.4:*:*:*:*:*:*:*
rubyonrails rails 4.1.5 cpe:2.3:a:rubyonrails:rails:4.1.5:*:*:*:*:*:*:*
rubyonrails rails 4.1.6 cpe:2.3:a:rubyonrails:rails:4.1.6:*:*:*:*:*:*:*
rubyonrails rails 4.1.6 cpe:2.3:a:rubyonrails:rails:4.1.6:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.6 cpe:2.3:a:rubyonrails:rails:4.1.6:rc2:*:*:*:*:*:*
rubyonrails rails 4.1.7 cpe:2.3:a:rubyonrails:rails:4.1.7:*:*:*:*:*:*:*
rubyonrails rails 4.1.7.1 cpe:2.3:a:rubyonrails:rails:4.1.7.1:*:*:*:*:*:*:*
rubyonrails rails 4.1.8 cpe:2.3:a:rubyonrails:rails:4.1.8:*:*:*:*:*:*:*
rubyonrails rails 4.1.9 cpe:2.3:a:rubyonrails:rails:4.1.9:*:*:*:*:*:*:*
rubyonrails rails 4.1.9 cpe:2.3:a:rubyonrails:rails:4.1.9:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.10 cpe:2.3:a:rubyonrails:rails:4.1.10:*:*:*:*:*:*:*
rubyonrails rails 4.1.10 cpe:2.3:a:rubyonrails:rails:4.1.10:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.10 cpe:2.3:a:rubyonrails:rails:4.1.10:rc2:*:*:*:*:*:*
rubyonrails rails 4.1.10 cpe:2.3:a:rubyonrails:rails:4.1.10:rc3:*:*:*:*:*:*
rubyonrails rails 4.1.10 cpe:2.3:a:rubyonrails:rails:4.1.10:rc4:*:*:*:*:*:*
rubyonrails rails 4.1.12 cpe:2.3:a:rubyonrails:rails:4.1.12:*:*:*:*:*:*:*
rubyonrails rails 4.1.12 cpe:2.3:a:rubyonrails:rails:4.1.12:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.13 cpe:2.3:a:rubyonrails:rails:4.1.13:*:*:*:*:*:*:*
rubyonrails rails 4.1.13 cpe:2.3:a:rubyonrails:rails:4.1.13:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.14 cpe:2.3:a:rubyonrails:rails:4.1.14:*:*:*:*:*:*:*
rubyonrails rails 4.1.14 cpe:2.3:a:rubyonrails:rails:4.1.14:rc1:*:*:*:*:*:*
rubyonrails rails 4.1.14 cpe:2.3:a:rubyonrails:rails:4.1.14:rc2:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:*:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:beta1:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:beta2:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:beta3:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:beta4:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:rc1:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:rc2:*:*:*:*:*:*
rubyonrails rails 4.2.0 cpe:2.3:a:rubyonrails:rails:4.2.0:rc3:*:*:*:*:*:*
rubyonrails rails 4.2.1 cpe:2.3:a:rubyonrails:rails:4.2.1:*:*:*:*:*:*:*
rubyonrails rails 4.2.1 cpe:2.3:a:rubyonrails:rails:4.2.1:rc1:*:*:*:*:*:*
rubyonrails rails 4.2.1 cpe:2.3:a:rubyonrails:rails:4.2.1:rc2:*:*:*:*:*:*
rubyonrails rails 4.2.1 cpe:2.3:a:rubyonrails:rails:4.2.1:rc3:*:*:*:*:*:*
rubyonrails rails 4.2.1 cpe:2.3:a:rubyonrails:rails:4.2.1:rc4:*:*:*:*:*:*
rubyonrails rails 4.2.2 cpe:2.3:a:rubyonrails:rails:4.2.2:*:*:*:*:*:*:*
rubyonrails rails 4.2.3 cpe:2.3:a:rubyonrails:rails:4.2.3:*:*:*:*:*:*:*
rubyonrails rails 4.2.3 cpe:2.3:a:rubyonrails:rails:4.2.3:rc1:*:*:*:*:*:*
rubyonrails rails 4.2.4 cpe:2.3:a:rubyonrails:rails:4.2.4:*:*:*:*:*:*:*
rubyonrails rails 4.2.4 cpe:2.3:a:rubyonrails:rails:4.2.4:rc1:*:*:*:*:*:*
rubyonrails rails 4.2.5 cpe:2.3:a:rubyonrails:rails:4.2.5:*:*:*:*:*:*:*
rubyonrails rails 4.2.5 cpe:2.3:a:rubyonrails:rails:4.2.5:rc1:*:*:*:*:*:*
rubyonrails rails 4.2.5 cpe:2.3:a:rubyonrails:rails:4.2.5:rc2:*:*:*:*:*:*
rubyonrails rails 5.0.0 cpe:2.3:a:rubyonrails:rails:5.0.0:beta1:*:*:*:*:*:*
rubyonrails ruby_on_rails <= 3.2.22 cpe:2.3:a:rubyonrails:ruby_on_rails:*:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 4.0.10 cpe:2.3:a:rubyonrails:ruby_on_rails:4.0.10:rc2:*:*:*:*:*:*

References for CVE-2015-7577

cvelogic Threat Intelligence