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Medium severity5.4NVD Advisory· Published Sep 6, 2021· Updated Jun 17, 2026

CVE-2021-3767

CVE-2021-3767

Description

bookstack is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

Bookstackapp/Bookstackapp/bookstackv52 versions
unspecified+ 1 more
- (no CPE)range: unspecified
- (no CPE)
Bookstackapp/Bookstack
cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*
Range: <21.08.2

Patches

Vulnerability mechanics

References

2

github.com/bookstackapp/bookstack/commit/040997fdc4414776bcac06a3cbaac3b26b5e8a64nvdPatchThird Party Advisory
huntr.dev/bounties/7ec92c85-30eb-4071-8891-6183446ca980nvdExploitIssue TrackingPatchThird Party Advisory

News mentions

0

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