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CVE-2018-19620

18
FAUCET Score

CVE-2018-19620 describes an access control vulnerability in ShowDoc 2.4.1, allowing authenticated remote attackers to edit other users' notes by manipulating the page_id parameter. This vulnerability has a CVSS score of 4.3 (MEDIUM), indicating a low impact on integrity with no confidentiality or availability impact, and requires low privileges to exploit over the network. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.1CPE matchmatch criteria
cpe:2.3:a:showdoc:showdoc:2.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 80th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: showdoc/showdocFixed in: 2.4.2
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-pfrc-5hhq-6hvrmedium

Showdoc Unauthenticated Access

May 13, 2022

References

github.com / CCCCCrash/POCs/tree/master/Web/showdoc/IncorrectAccessControl
ExploitThird Party Advisory
github.com / star7th/showdoc/commit/bcdb5e3519285bdf81e618b3c9b90d22bc49e13c
Patch
github.com / star7th/showdoc/issues/397
Issue Tracking