CVE-2017-1002201

Name: CVE-2017-1002201
Creator: NVD / NIST
Published: 2019-10-15T18:15:10.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2017-1002201 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.45%

70.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Haml	Haml	< 5.0.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://github.com/haml/haml/commit/18576ae6e9bdcb4303fdbe6b3199869d289d67c2Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00007.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00028.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202007-27Third Party Advisory
https://snyk.io/vuln/SNYK-RUBY-HAML-20362Exploit, Patch, Third Party Advisory
https://github.com/haml/haml/commit/18576ae6e9bdcb4303fdbe6b3199869d289d67c2Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00007.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00028.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202007-27Third Party Advisory
https://snyk.io/vuln/SNYK-RUBY-HAML-20362Exploit, Patch, Third Party Advisory

Timeline

Published: Oct 15, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-1002201?

How severe is CVE-2017-1002201?

CVE-2017-1002201 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2017-1002201?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-1002201?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST