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.

Classification

CVE ID: CVE-2025-0520

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.4

CVSS Vector: 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

Affected Products

Vendor: ShowDoc

Product: ShowDoc

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.3% (probability of being exploited)

EPSS Percentile: 52.66% (scored less or equal to compared to others)

EPSS Date: 2025-05-28 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-0520
https://github.com/vulhub/vulhub/tree/master/showdoc/CNVD-2020-26585
https://github.com/star7th/showdoc/pull/1059
https://www.cnvd.org.cn/flaw/show/CNVD-2020-26585

Timeline