HOMEVULNERABILITIESCVE-2019-15503
CRITICAL

CVE-2019-15503

CWE-78Published: August 26, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

cgi-cpn/xcoding/prontus_videocut.cgi in AltaVoz Prontus (aka ProntusCMS) through 12.0.3.0 has "Improper Neutralization of Special Elements used in an OS Command," allowing attackers to execute OS commands via an HTTP GET parameter.

NVD Source

Technical Analysis

CVE-2019-15503 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

altavoz1 product(s)
prontuscms
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://blog.nivel4.com/investigaciones/vulnerabilidad-de-ejecucion-de-comandos-remotos-rce-en-prontuscms/
ADVISORYhttps://blog.nivel4.com/investigaciones/vulnerabilidad-de-ejecucion-de-comandos-remotos-rce-en-prontuscms/

All References (2)

→
https://blog.nivel4.com/investigaciones/vulnerabilidad-de-ejecucion-de-comandos-remotos-rce-en-prontuscms/Third Party Advisory
→
https://blog.nivel4.com/investigaciones/vulnerabilidad-de-ejecucion-de-comandos-remotos-rce-en-prontuscms/Third Party Advisory

Quick Facts

CVE IDCVE-2019-15503
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedAug 26, 2019

Related CVEs (CWE-78)

CVE-2025-5243
10.0
CVE-2014-6434
10.0
CVE-2013-0804
10.0
CVE-2003-0041
10.0
CVE-2026-56413
10.0
CVE-2008-4796
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-15503 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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