CVE-2025-0520

critical · 9.4

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

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.

9.4

CVSS

2.6%

EPSS (exploit prob.)

85th

EPSS percentile

2025-04-29

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-434

References

https://github.com/star7th/showdoc/pull/1059
https://github.com/vulhub/vulhub/tree/master/showdoc/CNVD-2020-26585
https://www.cnvd.org.cn/flaw/show/CNVD-2020-26585
https://www.vulncheck.com/advisories/showdoc-unauthenticated-file-upload-rce

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-0520