What is CVE-2011-1497?

CVE-2011-1497 is a medium-severity vulnerability in Rubyonrails Rails, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-19.

How severe is CVE-2011-1497?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2011-1497 known to be exploited?

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

XSS in Rubyonrails Rails

CVE-2011-1497

A cross-site scripting vulnerability flaw was found in the auto_link function in Rails before version 3.0.6.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-10-19 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Rubyonrails Rails
Rails — versions rails 3.0.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

www.openwall.com/lists/oss-security/2011/04/06/13 (Exploit, Mailing List, Third Party Advisory)
github.com/rails/rails/blob/38df020c95beca7e12f0188cb7e18f3c37789e20/actionpack… (Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2011-1497?: CVE-2011-1497 is a medium-severity vulnerability in Rubyonrails Rails, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-19.
How severe is CVE-2011-1497?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2011-1497 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.