CVE-2024-36676: BookStack · Cross-site Scripting
Affects BookStackSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 24.05.1 soon.
Data as of 26 Oct 2026, 12:54 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 24.05.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade bookstackapp/BookStack to 24.05.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubbookstackapp/BookStackpkg:github/bookstackapp/BookStackOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until then, administrators should restrict access to public-facing forms by implementing network-level controls such as IP whitelisting or VPN access to limit exposure. Rate limiting or CAPTCHA mechanisms on notification forms can reduce the risk of automated abuse. Monitoring email server logs for unusual spikes in notification traffic can help detect exploitation attempts early. Additionally, reviewing and tightening user enumeration protections, such as generic error messages that do not reveal user existence, will reduce information leakage. Employing web application firewalls (WAFs) with custom rules to block suspicious requests targeting notification endpoints can provide an additional layer of defense. Regular security audits and user awareness training on phishing risks related to user enumeration should complement technical controls.
Description
Incorrect access control in BookStack before v24.05.1 allows attackers to confirm existing system users and perform targeted notification email DoS via public facing forms.