CVE-2025-0520 | BDVDB-2026-276509 Detail

ShowDocShowDoc

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.

Impact#

CAPEC-650 Upload a Web Shell to a Web Server

Weaknesses#

CWE-434 Unrestricted Upload of File with Dangerous Type

References#

Exploit#

https://github.com/vulhub/vulhub/tree/master/showdoc/CNVD-2020-26585

History#

Version 12025-04-29Record published in the CVE List.
Version 22026-11-08Most recent update recorded in the CVE List.

Published

Published: 2025-04-29
Last modified: 2026-11-08

Vendor information

Vendor: ShowDoc
Product: ShowDoc

All ShowDoc vulnerabilities

Score

9.4 Critical

EPSS

2.4%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 84.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Unrestricted File Upload

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.8.7
Fixed
2.8.7

Scoring System

CVSS v4.0

9.4 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	Low
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	Low

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).