CVE-2017-16821 describes a Cross-Site Scripting (XSS) vulnerability in b3log Symphony (aka Sym) version 2.2.0. Specifically, the admin console's AdminProcessor.java mishandles a crafted X-Forwarded-For HTTP header, leading to XSS when displaying client IP addresses in /admin/user/userid. This medium-severity vulnerability (CVSS 5.4) requires low privileges and user interaction, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.2.0CPE matchmatch criteria | cpe:2.3:a:b3log:symphony:2.2.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.