What’s Vulnerable › Vulnerabilities

CVE-2021-4172: Cross-site Scripting (XSS) - Stored in star7th/showdoc

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-22 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross-site Scripting (XSS) - Stored in GitHub repository star7th/showdoc prior to 2.10.2.

Affected products

• star7th/showdoc: before 2.10.2 — fixed in 2.10.2

How to fix

Upgrade to a fixed version: star7th/showdoc 2.10.2. Check the vendor advisory for mitigations.

References

• https://github.com/star7th/showdoc/commit/409c8a1208bbb847046a9496303192980f2e6219
• https://huntr.dev/bounties/c041b693-877b-4456-b463-19e4c9456eee
• https://github.com/star7th/showdoc/commit/409c8a1208bbb847046a9496303192980f2e6219
• https://huntr.dev/bounties/c041b693-877b-4456-b463-19e4c9456eee

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