HOMEVULNERABILITIESCVE-2019-11574
CRITICAL

CVE-2019-11574

CWE-918Published: March 20, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An issue was discovered in Simple Machines Forum (SMF) before release 2.0.17. There is SSRF related to Subs-Package.php and Subs.php because user-supplied data is used directly in curl calls.

NVD Source

Technical Analysis

CVE-2019-11574 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

simplemachines1 product(s)
simple machine forum
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://pastebin.com/raw/prE3iiLm
ADVISORYhttps://www.simplemachines.org/community/index.php?board=1.0
ADVISORYhttps://pastebin.com/raw/prE3iiLm
ADVISORYhttps://www.simplemachines.org/community/index.php?board=1.0

All References (4)

→
https://pastebin.com/raw/prE3iiLmExploit · Third Party Advisory
→
https://www.simplemachines.org/community/index.php?board=1.0Release Notes · Vendor Advisory
→
https://pastebin.com/raw/prE3iiLmExploit · Third Party Advisory
→
https://www.simplemachines.org/community/index.php?board=1.0Release Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2019-11574
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-918
CISA KEVNo
Affected1 vendor(s)
PublishedMar 20, 2020

Related CVEs (CWE-918)

CVE-2026-35431
10.0
CVE-2026-26150
10.0
CVE-2023-3432
10.0
CVE-2025-2828
10.0
CVE-2026-2053
10.0
CVE-2026-47938
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-11574 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.COM. CVE data is provided under the NVD usage policy.
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