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CVE-2023-39421

22
FAUCET Score

CVE-2023-39421 describes a critical vulnerability in the RDPWin.dll component of the IRM Next Generation booking engine, where hardcoded API keys for services like Twilio and Vonage are exposed. This allows authenticated attackers to gain unrestricted access to these third-party services. With a CVSS score of 7.7 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to high confidentiality impacts. While there is no evidence of active exploitation, public exploit code, or significant community discussion, the presence of hardcoded credentials (CWE-798) presents a clear and present risk.

Impacted Technologies

VendorProductVersion(s)CPE
5.4.1.23CPE matchmatch criteria
cpe:2.3:a:resortdata:internet_reservation_module_next_generation:5.4.1.23:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 20th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

bitdefender.com / blog/labs/check-out-with-extra-charges-vulnerabilities-in-hotel-booking-engine-explained
Third Party Advisory