What is CVE-2013-0155?

CVE-2013-0155 is a vulnerability in Rubyonrails Rails, classified under CWE-264. Published 2013-01-13.

Is CVE-2013-0155 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Rubyonrails Rails

CVE-2013-0155

Ruby on Rails 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly consider differences in parameter handling between the Active Record component and the JSON implementation, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks or trigger missing WHERE clauses via a crafted request, as demonstrated by certain "[nil]" values, a related issue to CVE-2012-2660 and CVE-2012-2694.

Published 2013-01-13 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.4 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.082 (94.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.082 · newest: 0.082 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-264

Public proof-of-concept exploits

References

lists.opensuse.org/opensuse-updates/2013-12/msg00081.html (vendor-advisory, Mailing List, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2013-0155.html (vendor-advisory, Third Party Advisory)
www.debian.org/security/2013/dsa-2609 (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-updates/2014-01/msg00003.html (vendor-advisory, Mailing List, Third Party Advisory)
puppet.com/security/cve/cve-2013-0155 (Third Party Advisory)
lists.opensuse.org/opensuse-updates/2013-12/msg00082.html (vendor-advisory, Mailing List, Third Party Advisory)
support.apple.com/kb/HT5784 (Third Party Advisory)
lists.apple.com/archives/security-announce/2013/Jun/msg00000.html (vendor-advisory, Mailing List, Third Party Advisory)
lists.opensuse.org/opensuse-updates/2013-12/msg00079.html (vendor-advisory, Mailing List, Third Party Advisory)
ics-cert.us-cert.gov/advisories/ICSA-13-036-01A (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2013-0155?: CVE-2013-0155 is a vulnerability in Rubyonrails Rails, classified under CWE-264. Published 2013-01-13.
Is CVE-2013-0155 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.