CVE-2025-0520

Public Exploit
ShowDoc Unauthenticated File Upload Remote Code Execution

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.

Category

9.4
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.30%
Third-Party Advisory org.cn
Affected: ShowDoc ShowDoc
Published at:
Updated at:

References

Link Tags
https://github.com/vulhub/vulhub/tree/master/showdoc/CNVD-2020-26585 exploit
https://github.com/star7th/showdoc/pull/1059 patch issue tracking
https://www.cnvd.org.cn/flaw/show/CNVD-2020-26585 third party advisory

Frequently Asked Questions

What is the severity of CVE-2025-0520?
CVE-2025-0520 has been scored as a critical severity vulnerability.
How to fix CVE-2025-0520?
To fix CVE-2025-0520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-0520 being actively exploited in the wild?
It is possible that CVE-2025-0520 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-0520?
CVE-2025-0520 affects ShowDoc ShowDoc.
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