Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in RDPngFileUpload.dll

published 2023-09-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43148

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

A vulnerability in RDPngFileUpload.dll, as used in the IRM Next Generation booking system, allows a remote attacker to upload arbitrary content (such as a web shell component) to the SQL database and execute it with SYSTEM privileges. This vulnerability requires authentication to be exploited but can be paired with another vulnerability in the platform (CVE-2023-39420, which grants access to hardcoded credentials) to carry the attack without having assigned credentials.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-26)

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Resort Data Processing, Inc. IRM Next Generation

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
CWE-434 Unrestricted Upload of File with Dangerous Type

References

bitdefender.com /blog/labs/check-out-with-extra-charges-vulnerabilities-in-hotel-booking-engine-explained
third-party-advisory

Sources

CVE List CVE-2023-39424
NVD CVE-2023-39424

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary