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CVE-2018-20838

20
FAUCET Score

CVE-2018-20838 describes a stored Cross-Site Scripting (XSS) vulnerability in the AMP for WP plugin for WordPress, specifically affecting versions prior to 0.9.97.21. This medium-severity vulnerability (CVSS 5.4) allows an authenticated attacker to inject malicious scripts into the website, potentially leading to information disclosure or defacement, requiring user interaction to trigger. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.9.97.21CPE matchmatch criteria
cpe:2.3:a:magazine3:amp_for_wp:*:*:*:*:*:wordpress:*:*

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
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0108 is in the 93rd percentile among its peer group of 15,224 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

Remediation records are not available for this CVE.

References

ampforwp.com / critical-security-issues-has-been-fixed-in-0-9-97-20-version
plugins.trac.wordpress.org / browser/accelerated-mobile-pages/trunk/changelog.txt
Release NotesThird Party Advisory
wordpress.org / plugins/accelerated-mobile-pages
Release NotesThird Party Advisory
wordfence.com / blog/2018/11/xss-injection-campaign-exploits-wordpress-amp-plugin
ExploitThird Party Advisory