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CVE-2018-11686

77
FAUCET Score

CVE-2018-11686 is a critical remote code execution (RCE) vulnerability affecting FlexPaper (now FlowPaper) version 2.3.6, specifically within its Publish Service via setup.php and change_config.php. With a CVSS score of 9.8, it allows unauthenticated attackers to execute arbitrary code with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB and Nuclei templates exist, indicating a high likelihood of exploitation. The vulnerability has garnered significant community discussion, with 10 mentions, suggesting active interest among researchers and potential attackers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.6CPE matchmatch criteria
cpe:2.3:a:flowpaper:flexpaper:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
49.79%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Nuclei: CVE-2018-11686 · Jun 17, 2025
ExploitDB: EDB-46528 · Mar 11, 2019
This CVE's current EPSS score of 0.4979 is in the 97th percentile among its peer group of 36,821 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

flowpaper.com / blog
Release NotesThird Party Advisory
redtimmysec.wordpress.com / 2019/03/07/flexpaper-remote-code-execution
ExploitPatchThird Party Advisory