What’s Vulnerable › Vulnerabilities

CVE-2021-4017: Cross-Site Request Forgery (CSRF) in star7th/showdoc

• Severity: high (CVSS 8.8 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: 2021-12-01 · updated 2026-06-17
• Weakness: CWE-352

Description

showdoc is vulnerable to Cross-Site Request Forgery (CSRF)

Affected products

• star7th/showdoc: before 2.9.13 — fixed in 2.9.13

How to fix

Upgrade to a fixed version: star7th/showdoc 2.9.13. Check the vendor advisory for mitigations.

References

• https://github.com/star7th/showdoc/commit/654e871a3923e79076818a9a03533fe88222c871
• https://huntr.dev/bounties/1d8439e8-b3f7-40f8-8b30-f9cb05ff2bcd
• https://github.com/star7th/showdoc/commit/654e871a3923e79076818a9a03533fe88222c871
• https://huntr.dev/bounties/1d8439e8-b3f7-40f8-8b30-f9cb05ff2bcd

Get alerted when CVE-2021-4017 or the next vulnerability affects your stack