Critical severityOSV Advisory· Published Apr 29, 2025· Updated Apr 15, 2026
CVE-2025-0520
CVE-2025-0520
Description
An unrestricted file upload vulnerability in ShowDoc caused by improper validation of file extension allows execution of arbitrary PHP, leading to remote code execution.This issue affects ShowDoc: before 2.8.7.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
showdoc/showdocPackagist | < 2.8.7 | 2.8.7 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-6jmr-r7p6-f5wrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-0520ghsaADVISORY
- github.com/star7th/showdoc/pull/1059nvdWEB
- github.com/vulhub/vulhub/tree/master/showdoc/CNVD-2020-26585nvdWEB
- www.cnvd.org.cn/flaw/show/CNVD-2020-26585nvdWEB
- www.vulncheck.com/advisories/showdoc-unauthenticated-file-upload-rcenvdWEB
News mentions
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