CVE-2020-26211 is a cross-site scripting (XSS) vulnerability affecting BookStack versions prior to 0.30.4, allowing authenticated users with page editing permissions to inject malicious JavaScript via "javascript:" URIs or redirect users using a meta tag. This vulnerability carries a high CVSS score of 8.7 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N), indicating it can be exploited remotely with low complexity by a low-privileged user, leading to high confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.30.4CPE matchmatch criteria | cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.