CVE-2025-0520 is a critical unrestricted file upload vulnerability in ShowDoc versions prior to 2.8.7. This flaw allows attackers to upload arbitrary PHP files due to improper file extension validation, leading to remote code execution. With a CVSS score of 9.4 (CRITICAL), this vulnerability is easily exploitable over the network with low privileges and no user interaction, enabling high impact to confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, < 2.8.7CPE match | cpe:2.3:a:showdoc:showdoc:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.