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CVE-2023-3973

19
FAUCET Score

CVE-2023-3973 is a reflected Cross-site Scripting (XSS) vulnerability affecting jgraph/drawio versions prior to 21.6.3. This medium-severity vulnerability (CVSS 6.1) allows an unauthenticated attacker to inject malicious scripts via a network-based attack requiring user interaction, potentially leading to information disclosure and limited integrity impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 21.6.3CPE matchmatch criteria
cpe:2.3:a:diagrams:drawio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.6CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 27th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media 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.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / jgraph/drawio/commit/1db2c2c653aa245d175d30c210239e3946bfcb95
Patch
huntr.dev / bounties/4c1c5db5-210f-4d7e-8380-b95f88fdb78d
Permissions Required