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CVE-2018-20153

20
FAUCET Score

CVE-2018-20153 is a cross-site scripting (XSS) vulnerability affecting WordPress versions prior to 4.9.9 and 5.x prior to 5.0.1. This flaw allowed authenticated contributors to modify new comments made by higher-privileged users, potentially injecting malicious scripts. Rated Medium severity (CVSS 5.4), it requires user interaction and local privileges for exploitation, with potential for limited confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.9CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
>= 5.0, < 5.0.1CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.47%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0247 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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

Remediation records are not available for this CVE.

References

codex.wordpress.org / Version_4.9.9
ProductRelease NotesVendor Advisory
lists.debian.org / debian-lts-announce/2019/02/msg00019.html
Third Party Advisory
wordpress.org / news/2018/12/wordpress-5-0-1-security-release
Release NotesVendor Advisory
wordpress.org / support/wordpress-version/version-5-0-1
Release NotesVendor Advisory
wpvulndb.com / vulnerabilities/9172
Vendor Advisory
debian.org / security/2019/dsa-4401
Third Party Advisory
zdnet.com / article/wordpress-plugs-bug-that-led-to-google-indexing-some-user-passwords
Press/Media CoverageThird Party Advisory
securityfocus.com / bid/106220
Third Party AdvisoryVDB Entry