Cross-site scripting in http://haml.info/ haml
Priority LOW 30CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
In haml versions prior to version 5.0.0.beta.2, when using user input to perform tasks on the server, characters like < > " ' must be escaped properly. In this case, the ' character was missed. An attacker can manipulate the input to introduce additional attributes, potentially executing code.
Why it matters now
EPSS 0.01452 73rd percentileScored 2026-11-07
Fix Fixed haml (RubyGems): 5.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| http://haml.info/ | haml | All versions prior to version 5.0.0.beta.2 | — | No fix listed | CNA |
| — | haml (RubyGems) | before 5.0.0 | 5.0.0 | Patch available | GHSA-r53w-g4xm-3gc6 |
- haml Vendorhttp://haml.info/ Affected All versions prior to version 5.0.0.beta.2 Fixed in — No fix listed CNA
- haml (RubyGems) Vendor— Affected before 5.0.0 Fixed in 5.0.0 Patch available GHSA-r53w-g4xm-3gc6
Remediation
- Fix · GHSA-r53w-g4xm-3gc6 haml (RubyGems) Fixed in 5.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1002201
- 2026-10-03 Alias added: GHSA-r53w-g4xm-3gc6
References
Advisory 4
Sources
- CVE-2017-1002201 · CVE Program
- CVE-2017-1002201 · NVD
- FIRST EPSS
- GHSA-r53w-g4xm-3gc6 · GitHub Advisory Database · CC BY 4.0
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