CVE-2024-32463

phlex makes Cross-site Scripting (XSS) possible due to improper sanitisation of `href` attributes on `<a>` tags

HIGH

7.1

CVSS Score

Published: April 17, 2024 at 03:29 PM UTC

Updated: June 17, 2026 at 07:29 AM UTC

2 products affected across 2 vendorsFileUtilsPhlex

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Severity

HIGH7.1

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

phlex is an open source framework for building object-oriented views in Ruby. There is a potential cross-site scripting (XSS) vulnerability that can be exploited via maliciously crafted user data. The filter to detect and prevent the use of the `javascript:` URL scheme in the `href` attribute of an `<a>` tag could be bypassed with tab `\t` or newline `\n` characters between the characters of the protocol, e.g. `java\tscript:`. This vulnerability is fixed in 1.10.1, 1.9.2, 1.8.3, 1.7.2, 1.6.3, 1.5.3, and 1.4.2. Configuring a Content Security Policy that does not allow `unsafe-inline` would effectively prevent this vulnerability from being exploited.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FileUtils · Ruby

70%

1.0.0

Phlex · Phlex Rubyrubygems

60%

v < 1.10.1v < 1.4.2v < 1.5.3v < 1.6.3v < 1.7.2v < 1.8.3v < 1.9.2

Affected range stops below 1.10.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.4.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.6.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.7.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.8.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.9.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_MISC

Source: [email protected]

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy

x_refsource_MISC

Source: [email protected]

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy#unsafe-inline

x_refsource_MISC

Source: [email protected]

https://github.com/phlex-ruby/phlex/commit/9e3f5b980655817993682e409cbda72956d865cb

x_refsource_CONFIRM

Source: [email protected]

https://github.com/phlex-ruby/phlex/security/advisories/GHSA-g7xq-xv8c-h98c

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-79

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