Loading...
Skip to main content
GeekWala

CVE-2026-33168

LOW

Rails has a possible XSS vulnerability in its Action View tag helpers

Published March 23, 2026Updated May 13, 2026Source: osv

Summary

### Impact When a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. ### Releases The fixed releases are available at the normal locations. ### Credit This issue was responsibly reported by Hackerone researcher [taise](https://hackerone.com/taise).

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update actionview to 7.2.3.1 or later
gem install actionview -v 7.2.3.1
Bundler
Update actionview to 8.0.4.1 or later
gem install actionview -v 8.0.4.1
Bundler
Update actionview to 8.1.2.1 or later
gem install actionview -v 8.1.2.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

PackageEcosystemAffectedFixed In
actionview
rubygems
4.1.0, 4.1.0.beta1, 4.1.0.beta2, 4.1.0.rc1 (+282 more)7.2.3.1
actionview
rubygems
8.0.0, 8.0.0.1, 8.0.0.beta1, 8.0.0.rc1 (+6 more)8.0.4.1
actionview
rubygems
8.1.0, 8.1.0.beta1, 8.1.0.rc1, 8.1.1 (+1 more)8.1.2.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.0 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References

Frequently Asked Questions

What is CVE-2026-33168?
Rails has a possible XSS vulnerability in its Action View tag helpers This vulnerability has been assigned a severity rating of LOW (CVSS score: 5.0/10).
How do I check if my project is affected by CVE-2026-33168?
CVE-2026-33168 affects actionview. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-33168 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.0

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-v55j-83pf-r9cq

Related CVEs

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies