Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-39939

25
FAUCET Score

CVE-2023-39939 is a critical SQL injection vulnerability affecting LuxCal Web Calendar versions prior to 5.2.3M (MySQL) and 5.2.3L (SQLite). This flaw allows an unauthenticated remote attacker to execute arbitrary database queries, potentially leading to data theft or modification. With a CVSS score of 9.1, it presents a high risk due to its network-based attack vector, low attack complexity, and significant impact on confidentiality and integrity. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion or media coverage, the inherent severity of SQL injection warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.2.3mCPE matchmatch criteria
cpe:2.3:a:luxsoft:luxcal_web_calendar:*:*:*:*:*:*:*:*
< 5.2.3lCPE matchmatch criteria
cpe:2.3:a:luxsoft:luxcal_web_calendar:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 32nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN04876736
Third Party Advisory
luxsoft.eu
Product
luxsoft.eu
Product